The only reason why I knew something was up was because 9 should be a stripe, not a solid.
@robinisomaa
4 жыл бұрын
I knew the problem as presented was impossible, so I realized you could turn the 9 into a 6. Completely missed the stripe/solid and color thing though. Ass someone who used to play a lot of billiards, I'm a bit disappointed in myself.
@bwcbiz
4 жыл бұрын
yeah, even if you don't remember the specific color of the 6 ball, if you played enough 8-ball pool, you'll probably remember that the 9 ball can't be a solid color. Also, the other colors are paired solids/stripes which is a big clue about what the color of the 9 ball _should_ be (Edit: other colors are correct, I was just seeing the orange balls as yellow due to monitor calibration. )
@regalternative
4 жыл бұрын
Same here but I noticed the other way. 9 should be yellow, not green. Totally forgot it should be a stripe!
@shubhamdubey5572
4 жыл бұрын
Exactly even I was thinking that 9 should be stripe and the puzzle is related with that
@jongyon7192p
4 жыл бұрын
but then again proper billiard balls underline the numbers, so i thought its relevance to billiards was out the window
@briant7265
4 жыл бұрын
Use the 15 twice and turn any of the solids around so the number doesn't show!
@skoltrollkallamik4450
4 жыл бұрын
That was my thought. If you can spin the ball due to it being a sphere, just spin it to hide a #!
@andrewelliott2653
4 жыл бұрын
Just as logical as the actual, cheap trick of an answer.
@numerical9537
4 жыл бұрын
You cant use a ball for 2 times
@stevenbennett3805
4 жыл бұрын
Exactly. Evidently according to the rules as explained your solution is just as valid.
@GeorgiaHawg
4 жыл бұрын
@@numerical9537 Yes you can, the rules say so
@louisauffret
4 жыл бұрын
they're all odd numbers we cant edit : that's not what I signed up for
@integralboi2900
4 жыл бұрын
Louis Auffret yeah, these questions test your observation skills(mostly).
@lesnyk255
4 жыл бұрын
I booed out loud when he revealed the trick, since I know virtually nothing about billiards. I'd already worked out that 3 odds always sum to an odd, so I knew there had to be some out-of-the-box interpretation. I was thinking that maybe all the numbers were in some base other than 10. But nothing this lame came to mind.
@jongyon7192p
4 жыл бұрын
@@lesnyk255 you signed up for lame puzzles coming here, unfortunately. it kills me.
@arijitbhukta900
4 жыл бұрын
No we can ..... 3! +11+13 would be the ans😌 If it would just numbers not balls!!
@madushikadilshani1452
4 жыл бұрын
Try this magic trick How you can tell someones age without knowin even his birthday kzitem.info/news/bejne/rKyguWh8k3lpfYI
@mf1992
4 жыл бұрын
When he said you can use a ball twice, I immediately thought to just take 15 twice and turn one of the other balls around so the number doesn't show anymore. 15+15+0=30
@romangonzalezadrianmaurici6302
4 жыл бұрын
that is actually very clever!
@definitelynotsmat4325
4 жыл бұрын
Correct Answer: 6+11+13=30
@definitelynotsmat4325
4 жыл бұрын
Because 11+13 Is 24 Add Again By 6 makes 30.
@mf1992
4 жыл бұрын
@@definitelynotsmat4325 i know. I watched the video. There was no need to explain it again
@vijaylama0007
4 жыл бұрын
How can u pick 0 when there is no zero on option
@nchoosekmath
4 жыл бұрын
Not trying to be that guy, but there should be an underline to indicate whether it's a 6 or a 9.
@patrickhall9619
4 жыл бұрын
"You are technically correct, the best kind of correct." And that is the attention to detail that whoever made this puzzle totally missed. Both the 6 and the 9 have underlines on them, so unfortunately, the puzzle is bunk.
@macpack144
4 жыл бұрын
Whether or not something "should" have something is a matter of perspective. It all depends on the assumptions you bring to the problem. The problem as presented didn't say that these were pool or billiard balls. That is an assumption that we made.
@joep2999
4 жыл бұрын
@@macpack144 You'd as well say that we shouldn't have assumed it's in base 10 and that each symbol represents the value it does in Arabic numerals with the Latin alphabet. A puzzle should be aware of the target audience, and a puzzle shouldn't rely on gimmicky solutions. This puzzle gets them both wrong.
@Reckoner12
4 жыл бұрын
@@macpack144 whether
@lightdark00
4 жыл бұрын
9 is the underlined one in pool balls.
@eventhisidistaken
4 жыл бұрын
The thing is, once you abandon the apparent restrictions, there are probably an infinite number of solutions. Smash two of them and spray paint one with "30" on it. There, that's just as valid of a "solution".
@IMBlakeley
7 ай бұрын
Ha. Reminds me of my then 3 year old sister confronted by Rubik cube, pulled the coloured dots of and rearranged it that way.
@uggupuggu
6 ай бұрын
You sound so salty, the solution makes sense and is logical,
@alastairgreen2077
2 ай бұрын
a solution, not of a solution.
@dylancrow7919
12 күн бұрын
6 is a green ball. 9 is a yellow.
@MuNu_XiPi
4 жыл бұрын
I believe that more than 1% can solve this.
@CamilaHaurea
4 жыл бұрын
to be fair he said “1% can solve this problem”, not “ONLY 1% can solve this problem”
@aditya0710
4 жыл бұрын
Only 1% will find it interesting and attempt to solve it 😛
@zeeshan_vibes
3 жыл бұрын
Before watching the solution you should have wrote this
@aashsyed1277
3 жыл бұрын
10% just swip 6 to 9 or vise versa before watching the video lol 😆😆😆
@mu-qk2ov
2 жыл бұрын
I believe in videos like these he is typically joking when he says "only 1% solved it/95% failed it/adults stumped by kids problem"
@waiyanoo1102
4 жыл бұрын
Generally on billiard balls, there is a bar under the numbers 6 and 9 to further avoid confusion. Also, to those who might not play the game, the color of 8 is black and 8+n is the same as n, with the bigger number as stripes and the smaller as solids. So green solids is 6 and green stripes is 14. 9 will be a striped yellow. So in theory, the numbers given are actually 1 3 5 7 6 11 13 and 15. Using 9 is more like cheating than using 6.
@alexminsky1
4 жыл бұрын
Sorry, but the solution seems more like a cheap trick rather than a full-fledged mathematical method.
@karlmarzo7419
4 жыл бұрын
Well, it is a puzzle, not a mathematical problem.
@himeshviews7622
4 жыл бұрын
Correct
@himeshviews7622
4 жыл бұрын
@@karlmarzo7419 still there do exist some mathematical stipulations
@adampayne7844
4 жыл бұрын
"This is not strictly a mathematical problem. It's a puzzle." -This video
@BigNWide
4 жыл бұрын
The six ball is always solid green; the nine ball has a yellow stripe. If you know your billiards then it's an easy solution.
@SuzakuDragon
4 жыл бұрын
Tired: turning the "9" ball into a 6 Wired: Base 9 arithmetic (13 + 15 + 1 = 30)
@pizdamatii5001
4 жыл бұрын
i like this so much more than the 'official' solution.
@thewhiteface357
4 жыл бұрын
13 + 15 + 1 =29?
@siblinganon66
4 жыл бұрын
@@thewhiteface357 Base 9. Like computers use base 2 and we normally calculate in base 10. Base 9 (13) is base 10 (12); base 9 (15) is base 10 (14); base 9 (30) is base 10 (27). 1 is 1 in any base. base 10 (12 + 14 + 1 = 27) which is base 9 (13 + 15 + 1 = 30). Very nice solution.
@briant7265
4 жыл бұрын
@@thewhiteface357 There are 10 types of people, those who understand binary and those who don't.
@caput_in_astris
4 жыл бұрын
Muuuuuuch much much nicer solution! I hate solutions line « turn the ball » / « turn the screen » / switch of the light » etc. Yours is.... Brilliant!
@larryperez9895
4 жыл бұрын
Sorry, but you changed the number 9 to 6. That's cheating and deceptive plain and simple.
@Misteribel
3 ай бұрын
😂😂😂 funny
@alexfrozen8987
Ай бұрын
Exactly, this gonna be 33. Text was saying it's 9, so it's 9. Also, there is no 3 dimensions on my screen, it is flat.
@sean_haz
21 күн бұрын
Doesn't take long to figure out. Took me 30s 20 seconds of trying to brute force it in my head 5 minutes to check that all balls were odd numbers and 5 more to find what could be turned upside down.
@MrStark-gl6pp
13 күн бұрын
It’s a logic puzzle not a math one genius
@derwolf7810
4 жыл бұрын
You also could solve that with two 6 balls and a 15 ball: 9+6+15=30.
@_nicknamez_6325
2 жыл бұрын
No number 6
@derwolf7810
2 жыл бұрын
@@_nicknamez_6325 If you rotate the ball with the number 9 on it by 180 degree, then that ball shows the number 6.
@dylancrow7919
12 күн бұрын
There is a 6, but there is no 9. 9 is a yellow stripe.
@derwolf7810
12 күн бұрын
@@dylancrow7919 In case my answer to _nicknamez_6325 (right above your post) is not hidden by youtube, then reverse the description I gave him. Else, if you rotate the glyph used for the digit on the number 6 pool ball in the video by 180 degree, then the result is a valid representation for a glyph for the digit 9, which is all we need to solve the riddle, because there is no rule against interpreting glyphs when rotated by 180 degree - quite the opposite, the task uses that fact in the description.
@LogicalMath
4 жыл бұрын
6 + 9 + 15 = 30 is another solution, as it is allowed to use numbers more than ones (6 and 9 on the same ball)
@jamesrobert2033
4 жыл бұрын
Logical Maths how did you comment this 8 hours ago
@MindYourDecisions
4 жыл бұрын
Clever!
@wintercheckmate869
4 жыл бұрын
James Robert wait a second...you’re right...
@NelsonFilmsStudio
4 жыл бұрын
Ryan Chen it might be this video was unlisted and this guy got the link and commented.
@aakaasha6123
4 жыл бұрын
James Robert , He is a patron member and therefore gets early access to Presh's videos
@prashantsubedi9351
4 жыл бұрын
Who remembers this question from the movie ‘Genius‘ ?
@xonasedits
4 жыл бұрын
I do #indiancinema
@mdsarfealam2081
4 жыл бұрын
Right
@rinkuthakur2888
4 жыл бұрын
Yes ,Radhey Radhey
@MrNOBODY-bz3qr
4 жыл бұрын
Right bro
@raja_210
4 жыл бұрын
Yeah
@kazebaret
4 жыл бұрын
I actually solved the problem assuming that 30 was a number in a base > 3. You can show then that it has to be odd. So it means that also the balls are written in that base. Let's start with base 5. (30)_5 = 15 in base 10. In this case, considering that in base 5 the only digits that exist are 0-4, we can only use the balls 1,3, 11,13. (1+13+11)_5 = (3+11+11)_5 = (30)_5. In general, the numbers in the balls can be written as 1,3,5,7,9,k+1,k+3,k+5. And the sum of 3 of them has to be equal to 3k ((30)_k = 3k), with k odd >3, and you can only use numbers whose digits are < k. Thus, you can show that the maximum base that satisfies the equality is 19: (k+5)+(k+5)+9 = 3k => k =19.
@chriflu
8 ай бұрын
My thinking was similar: My immediate reaction was that this does not work with an even base so the base needs to be odd. Also the base needs to be greater than 10 because there's the digit 9 in there. Then I thought it would seem odd, no pun intended, or improbable to only have the digits up to 9 in there if the base were MUCH higher than ten. So my first assumption was that the base was eleven. This would mean that the 5 digits 2, 4, 6, 8, A would be missing while the other six digits 0, 1, 3, 5, 7, 9 would be there. A reasonable assumption - and of course, the puzzle is easy to solve with base 11 (or 13, 15, 17, or 19). However my mind went: What are the odds that we get a puzzle with base 19 in which, "by chance", the additional digits A, B, C, D, E, F, G, H, I never occur - as opposed to the odds that, by chance, the only additional digit A never occurs? If we think of the puzzle in base 10, 6 out of 10 digits are there. If we think of it in base 11, 6 digits out of 11 are there. Not much of a difference. Then I started to think of the problem in terms of probability. I.e. given that we have this puzzle that is only solvable with base 11, 13, 15, 17, or 19, let's assume this is the only trace that we have of the number system of an ancient civilization. Let's assume we know the puzzle and we know it is solvable in their number system. We therefore know for sure their base had to be 11, 13, 15, 17, or 19. But would all of these possibilities be equally probable? (I would think not.) And if not, what would the probability of each base be?
@SteveSmith-rt7wx
4 жыл бұрын
Also, depending on how the question is written/presented, you could use more than three balls. I missed the "exactly" in Presh's explanation, so if the presenter forgot that key word then the rules could be taken as: "You can use a ball more than once, but you must use [at least] three balls" If the answer can be, "Well the nine is actually a six" Then my BS cheat is also legit
@shivangyadav5293
4 жыл бұрын
This is very old puzzle and a old solution. This solution is already given by in genius movie which is Bollywood movie. Every one will be satisfied with me. But sir, your work is mind blowing and fantastic. Keep it up.
@sehr.geheim
4 жыл бұрын
Isn't it a little over the top calling himself „one of the best channels on youtube“?
@AsadtheTutor
4 жыл бұрын
Not really. It's more meaningless than over the top. What makes a youtube channel good? Maybe what makes a youtube channel good is teaching you properties of odd numbers. It's no better or worse than any other metric you could use. And by that metric, it does well. Also, "one of the best" isn't "the best." It's also indefinite in its meaning.
@DrTWG
4 жыл бұрын
Yes it is , very much so . Self-aggrandising and more suited to a 2nd hand car salesman . It's not the only odd thing , no pun intended.
@FireyDeath4
3 ай бұрын
#sweetheartthebest
@eIonmuskofficial
4 жыл бұрын
A better solution to this riddle is: 13+11+3! (As 3!=6)
@tassadar7945
4 жыл бұрын
but that is adding an extra operand to the equation that is not there.
@prakashkarambat2738
4 жыл бұрын
@@tassadar7945 Nice
@goseigentwitch3105
4 жыл бұрын
I used kinda of a different cheat. You said that three numbers must be used, but never said three circles must be sued. I put 1 next to 5 to concatenate into 15 in the 1st circle and a 15 in the 2nd circle. I used three numbers in only 2 circles but got 15 + 15 = 30
@tomkerruish2982
4 жыл бұрын
Turn the 9 upside down. Solved it from the thumbnail.
@roygalaasen
4 жыл бұрын
Yes, it didn’t even take that long to figure out either.
@peptobismolveins
4 жыл бұрын
Haha 😂, then what was the need to come and comment. Weird.
@BigNWide
4 жыл бұрын
But it was never a nine ball. The nine ball in a set of billiards has a yellow stripe. It's the six ball that is a solid green. If you know your billiards, it should be an easy spot.
@aryanpatil49
4 жыл бұрын
It's a question from the game BRAIN OUT!!
@anjalkumar6478
4 жыл бұрын
kzitem.info/news/bejne/qaGpwH6Ci3WmfI4
@anujpandey2083
4 жыл бұрын
13+11+6(reverse of 9)=30
@flexable9256
4 жыл бұрын
Except that the 6 and 9 balls have a mark to tell the players this is the 9 or the 6.
@0xstuff625
8 ай бұрын
I thought the solution was 11 + 13 + 15: the question was worded as “the numbers on the balls add up the 30”, so you’re not necessarily limited to the two additions in the question, therefore the solution was 1 + 1 + 13 + 15
@pkmath12345
4 жыл бұрын
I was about to say what Logical Maths said~ Numbers can be used more than once~ good job haha
@williamevans4379
4 жыл бұрын
Alternative solution (did it from the thumbnail so it breaks the restriction that you can only use 3 balls): -Observe that all the numbers on the balls are odd and that ODD + ODD + ODD = ODD, so any sum of 3 odd numbers cannot equal 30. -Get around this by moving the 1 ball to the right of the 30 so that it becomes 301, which is odd. -Put the 15 ball and the 9 ball in the first slot, which gives 159. -Put the 13 ball and the 7 ball in the second slot, which gives 137. -Put the 5 ball in the third slot. -159 + 137 + 5 = 301. Second alternative solution: rotate the first addition sign so that it becomes a multiplication sign. Then 5x3 + 15 = 30.
@nerdyengineer7943
8 ай бұрын
Turn the 9 upside down into a 6 and add it to 15 and 11. Because otherwise it is impossible: All shown numbers are odds. It is impossible to add 3 odd numbers and get an even number.
@RodrigoMendes-bd3bp
4 жыл бұрын
I saved my time by not attempting to solve it at first. Nice challenge!
@059echo
4 жыл бұрын
Rotating a ball doesnt change it's value. In reality, no.6 and no.9 are always underlined. But thanks for showing the fun bit of solving this problem :)
@RealMesaMike
Ай бұрын
Since the ball is solid green, it's a six!
@quokofumi5653
4 жыл бұрын
In my opinion its like 80% not 1% But still my favourite one is average distance between two random points in an 1x1 square
@itsahmd295
4 жыл бұрын
I still don't get the point from that video
@Lord_Skeptic
Күн бұрын
15+13+1=30 (base 9). Nowhere does it say it has to be in decimal does it.
@JDC2890
4 жыл бұрын
I just put the '1' and '7' balls together in the first circle, then put the '13' ball after it. Unconventional, but nothing is saying you can only put one ball in one circle.
@nityamagarwal2700
4 жыл бұрын
13 + 11 + 9 just do 9 upside down
@sumukhhegde6677
4 жыл бұрын
Nice... 3! + 9 + 15 is alternate
@nityamagarwal2700
4 жыл бұрын
Can't add factorials
@pranavsudheer
4 жыл бұрын
What about 9.7 + 5.3 + 15
@anjalkumar6478
4 жыл бұрын
kzitem.info/news/bejne/qaGpwH6Ci3WmfI4
@02_yoriidmaldiarif24
4 жыл бұрын
Yeah nine ball is yellow btw
@simonputnam
4 жыл бұрын
3, 5 and 7. Two numbers on each ball so sum is 30. Easy!
@nowonmetube
4 жыл бұрын
No
@robertharrison1034
7 ай бұрын
"You're allowed to use a number more than once but you must use exactly three of the balls" I interpreted that to allow me to use the 1, the 13, and the 15 (exactly three of the balls) and I use the 1 more than once (twice), so I get the total of 30.
@studgerbil9081
7 ай бұрын
this is the way I did it and didn't need to invert the 6-ball. You could come up to 30 in a variety if ways by using 1 or 3 more than once, but still use exactly three of the balls.
@violetfactorial6806
16 сағат бұрын
It looks like all odd numbers, so there must be a trick. Realizing that the puzzle is actually "change one of these to an even number" makes the puzzle trivial.
@pranavsudheer
4 жыл бұрын
Well I solve it by doing this -> 9.7 + 5.3 + 15 = 30
@appleslover
4 жыл бұрын
Disliked!!! You didn't rename the problem. I mean for gogu's sake, how mean is that!!
@seanshameless0
4 жыл бұрын
apple's lover what?
@nisargbhavsar25
4 жыл бұрын
@@seanshameless0 You don't seem to be a regular viewer!!
@bluerizlagirl
4 жыл бұрын
@@seanshameless0 If the same mathematical relationship was independently discovered by several people, each of them has an equal right for it to be named after them. It's slightly unfair that Europeans have had excessive representation for years. It's very unfair to try and stop anyone else from using their own preference, in honour of their own favourite.
@nisargbhavsar25
4 жыл бұрын
@@bluerizlagirl Here comes Talwalkar's mom!!
@Meshamu
Ай бұрын
Stopped at 0:36, and no matter what you may reuse, you have to add three odd numbers together, to make an even number. That can't be done! 2:12 You magnificent bastard, you got me with the upside-down six. Well done.
@hilsebosch5453
4 жыл бұрын
I had another answer: Ball 1 and ball 9 make together 19... Ball 1 & ball 9 + ball 11 + nothing = 30
@masunori
4 жыл бұрын
U cannot take away the plus sign right?
@civilengineer057
4 жыл бұрын
I know this problem You just have to reverse the number 9 and you'll get 6 So, 6+9+15=30 Edit: It was 6+11+13
@WarmWeatherGuy
4 жыл бұрын
There are two solutions.
@Raqdolll
4 жыл бұрын
@@WarmWeatherGuy Nope, the 9 is used as the 6
@vizionthing
4 жыл бұрын
@@WarmWeatherGuy Nope there are six
@RaiShaFIN
4 жыл бұрын
@@Raqdolll It was said in the video that you can use the same ball twice.
@Raqdolll
4 жыл бұрын
@@RaiShaFIN Still doesn't make the 6-ball a 9 though
@Eliza513E
4 жыл бұрын
Finally I managed to solve the math part of a problem by myself lol. I was like wait, 3 odd numbers must add to an odd number, but 30 is even
@brettevill9055
6 сағат бұрын
Those would be pool balls, not billiards balls. There are no numbers on billiards balls, nor on snooker balls.
@1Resare
4 жыл бұрын
6+9+15 works as well, since we can use a ball more than once.
@ceylontruckers8428
Жыл бұрын
Yeah. That is aloso correct and mention allowed to use a number more than once in question.
@AlphaNumeric123
4 жыл бұрын
I did 15 and 15 and then chose one ball and rotate it such that no number showed on its face. I knew the answer was going to be a trick related to how the balls are oriented and feel like my answer is close enough!
@baltimoredude1
4 жыл бұрын
Since this is a puzzle, I can choose to make 11 + 13 + 3! too. Can't I? This is puzzle, not mathematics so I changed my perspective too.
@Gooey
4 жыл бұрын
Clever
@mohamedhusam8189
4 жыл бұрын
Yes it seems ingenius
@donkitchin4216
2 ай бұрын
It also works if all numbers are base 15 instead of base 10. 9+11+15 =30. Decimal equivalents are 9 + 16+20=45
@Heliumoxid43
4 жыл бұрын
There is a much better solution: 3+13+15 = 30 Why? Assuming base 11 instead of 10, the same equation reads: 3+14+16 = 33 in base 10.
@kaustavbauri8038
4 жыл бұрын
I loved this video Sir, because I used the same trick. Hope you keep sending us interesting problems during the lockdown. Best wishes from India.
@xiaoshen194
4 жыл бұрын
This was asked by UPSC!! Literally 90% couldn't solve it...
@sunchess5950
4 жыл бұрын
When
@shantanu7985
4 жыл бұрын
Thats a fake news bruh
@user-bb5rz8iv7v
4 жыл бұрын
8+10+12
@harshitvarma7867
4 жыл бұрын
This rumour was published by whatsapp university. It is fake , upsc will never come up with this lame question
@xiaoshen194
4 жыл бұрын
@@harshitvarma7867 ohkk sorry
@massimookissed1023
4 жыл бұрын
I started out trying to make this work in an odd number base, and realised I haven't had enough coffee.
@gray5596
9 күн бұрын
One more solution. Use the 9 ball twice, one upside down. So 9 + 6 + 15 = 30. Just a slight variation on his answer.
@rishijha8984
4 жыл бұрын
So this puzzle appeared in one of the Bollywood movies (Genius). From India:3
@shivangyadav5293
4 жыл бұрын
Yes shastri ji ne solve Kiya ,😁😁
@harshitvarma7867
4 жыл бұрын
Lame question hai
@rishijha8984
4 жыл бұрын
@@shivangyadav5293 yes😊
@sharaddadhich9198
4 жыл бұрын
11+13+3! = 30
@rvbernier
5 ай бұрын
After a few minutes of thinking, I concluded that one should think out of the box. I looked for a ball that could give an even number if rotated. 9 became the only choice. 6+11+13=30
@skwest
Ай бұрын
As a pool player, I happen to know that the balls numbered under 8 are "solids" and those over 8 are "stripes". Further, the two green-colored balls are the 6-ball and the 14-ball. That makes the problem an easy one.
@xiaoshen194
4 жыл бұрын
Sir, what is that music in the end. I might wanna add it in "receiving my graduation degree" video
@xiaoshen194
4 жыл бұрын
@@squeezy8414 sir I am still in high school preparing for NIT or similar college... it is my dream to add this music in the video that I would take one day!! Thanks btw for this +ve comment...😍👍🇮🇳☺
@cubing7276
4 жыл бұрын
I'm looking at the 9 ball and thought: why is it solid and not stripes? *the answer is revealed* Oh so that's why it's solid!
@michaelzumpano7318
Ай бұрын
Unlike a lot of commenters, I think this is an awesome problem. A lot of great solutions in physics come down to finding a trick that turns the problem on its head. I’m not a fan of the phrase, “thinking outside the box”, but that’s what it takes to solve problems that resist procedural approaches. So this problem is great training for life. Okay, here are three examples: Planck’s clever use of finite elements removed the infinities from the Ultraviolet Paradox. It was arguably the first piece of the puzzle for the discovery of quantum mechanics. Feynman’s trick led to the path integral, least action and electrodynamics. Dirac found several separate tricks that got us a relativistic equation with spin that started us on the path to the standard model. When you realize you have to add three odd numbers to get an even one, you know the only to solve it is with a trick that turns one odd number into an even one. There is only one number in the picture that can make that happen. So bravo Presh. More like this.
@trestianb
4 жыл бұрын
How about this for thinking outside the box? The problem does not specify you have to be in base ten. In base nine you have multiple solutions, you just have to rotate that 9 because it does not exist in base 9, 9=10 in base 9.
@buzzmas8068
4 жыл бұрын
That is a much more satisfying answer than “flip the 9 upside down”
@XxIgnirFirexX
4 жыл бұрын
"You're allowed to use one number more than once" => 6+9+15=30 aswell
@yashsrivastv007
4 жыл бұрын
Let's be honest Most of us already knew the answer Because we've seen this puzzle many times
@RealMesaMike
Ай бұрын
Seem like a 4th grade level trick question riddle.... However, if you are familiar with pool, you know the 6 ball is solid green and the 9 ball is yellow stripe. What's shown is an upside down 6 ball. So, one answer could be 13+11+6.
@tednirvana2
4 жыл бұрын
As always, the people who didn't solve it complain that it's unfair
@itsmiracle9847
4 жыл бұрын
Don't mind me just saying 3!+11+13=30 😜😂😁😂 How's that!!!!!!
@muzaffardany6790
4 жыл бұрын
It is as easy as ABC ;as 3! equals to 6 ....
@itsmiracle9847
4 жыл бұрын
@@muzaffardany6790 yeah!!
@padmakarsirsat7739
4 жыл бұрын
When a problem seems impossible try to change your perspective.
@DreadX10
4 жыл бұрын
And when the 'solution' seems lame, change your perspective again for a more elegant solution.....
@Mueller3D
4 жыл бұрын
That's what Kirk did with the Kobayashi Maru, right?
@erikthompson584
2 жыл бұрын
I would like to propose a "better" solution to your problem. Here I define "better" to be "more mathematical" and less of a "trick". When I realized that you couldn't get an even number by adding three odds, my knee-jerk reaction was "this is impossible, so the numbers don't mean what you think they mean -- maybe they are not base 10 numbers." The problem never explicitly stated that these numbers were base 10. So I started wondering if there was another base which would make the sum work. Since there is a 9 is on the board, the numbers can't be any base smaller than base 10. I immediately thought "maybe these are hex digits (base 16)" but that doesn't work because if these number have an even base, then all the numbers are still odd and the sum is still even and you still have a problem. So the numbers must have an odd base. So I started with base 11 to see if a solution exists. It turns out that if the balls are all base 11, then a solution DOES exist. If the numbers are all base 11, then 15 + 13 + 3 = 30 in base 11, and the answer to the problem would be "use balls 15, 13, and 3". Let me spell that out by converting all the numbers to something more familiar. Let's start with the sum at the end. The number 30 in base 11 is equal to (3 * 11) + (0 * 1) = 33 in decimal (base 10). So we're looking for three (base 11) balls which sum up to 33 in decimal. Ball 15 (base 11) is equal to (1 * 11) + (5 * 1) = 16 decimal. Ball 13 (base 11) is equal to (1 * 11) + (3 * 1) = 14 decimal. Ball 3 (base 11) is equal to 3 decimal. So the equality 15 + 13 + 3 = 30 in base 11 is the same as 16 + 14 + 3 = 33 in decimal. The sum works. The point is, if you assume all the balls are base 11, then the solution to the problem is to use balls 15, 13, and 3. In my humble opinion, this solution is more mathematically based than your hacky trick of turning numbers upside down. Anyway, if you made it this far, thanks for reading!
@periculum69
Ай бұрын
You must use exactly three of the balls but you can use the numbers on the balls more than once. Those were the exact instructions. So my three balls are the 5, 9, and 11. I then use the 5 twice. 5+5+9+11 = 30
@navjot5445
4 жыл бұрын
11 + 14 + 3! = 30 3! = 3×2×1 = 6 Thanks...
@raja_210
4 жыл бұрын
After seeing this puzzle me :- Tera Fitoor Jab se ....😅
@aeromodeller1
4 жыл бұрын
In that case, we rotate the first + forty five degrees to make it a x. Then 3 x 5 + 15 = 30. Or we dissolve all the signs in solvent, evaporate most of the solvent to make ink and write anything we want. Why not 15 + 15 + 15 = 30? Turn algebra on its head, break all the rules.
@ugurunver2403
2 ай бұрын
With that perspective, putting 1 and 9 in same circle and 11 in another circle and leaving the third one blank should be equally correct solution.
@priyanusen8215
4 жыл бұрын
One of the lamest questions
@marknic
7 ай бұрын
Just use 3 balls with 13 on them. 13 + 13 + 1 + 3 = 30.
@dieterfrei7409
8 ай бұрын
It's like saying: on the other side of each ball there is a 10. So turning three balls around would give us 10 + 10 + 10. Solved.
@parvagrawal7317
4 жыл бұрын
You could use factorials too for solving it... -> 13 + 11 + 3! = 30 But I know one more - (If you just consider all the numbers) -> 9.5 + 11.5 + 9 = 30
@samlee5549
6 ай бұрын
Since there’s all odd numbers, no combination of three numbers could produce an even number. Thus, there is some form of trickery afoot. Rotating around, we see that the 9 upside down is a 6. This is the only way to get an even number and is thus the only solution. (6+11+3)
@davidalejandrodelosreyesos146
4 жыл бұрын
Really good problem for making sure to always look arround and use every single peace of the information shown.
@user-oh2kt8lf6g
4 жыл бұрын
Another variant is 6+9+15 since it's a puzzle and since the same number can be used more than once as per statement of the problem.
@cmilkau
7 ай бұрын
You need to be careful with wording. "You are allowed to use a number more than once but you must use exactly 3 of the balls." Well, so for instance you can use balls 3,5 and 7. They sum up to 15, but you can use each number twice, for a sum of 30. You still used exactly 3 of the balls. You only used the *numbers on them* multiple times.
@KaiDoesMineCraft10
4 жыл бұрын
I used 15+13, which is 28. Then I only need 2 more. So I use the 11 ball, but I didn't use 11 as 11, but as a part of 1s, which is 2. Good enough for me.
@kerryhalprin9093
2 ай бұрын
My answer was to put the 1 and 5 ball in the first circle to make 15, the 15 ball in the second, and leaving one circle blank.
@NickKravitz
4 жыл бұрын
In a standard billiard ball set, the six and nine have lines under them to prevent confusion. Snooker solved the problem by removing numbers from the balls.
@kamalkumarboronofnnagaon6610
4 жыл бұрын
11+13+6=30 6+9+15=30 These are balls. You can rotate them.
@justincase4812
Ай бұрын
As a pool player, that "9" ball is a 6ball because it is green. Upside down. 6+11+13.
@user-nj9ru4ef2w
10 ай бұрын
i put the 1 ball and the 5 ball in the same circle to create "15" and used the 15 ball in the second circle and left the 3rd circle blank.
@vyppal
3 ай бұрын
I was looking at the thumbnail for a bit like "huh", clicked on the video and hear u say the word "place" and then I was like "wouldn't it be funny if we just do this, and then use those". Turns out it was funny
@kevwang0712
4 жыл бұрын
Solved even before I clicked the video, clicked just to confirm that this was indeed the method used. This is an easy one
@glowstonelovepad9294
3 жыл бұрын
Flip the 9 around to get a 6. 6+11+13=30.
@fartinmartin5
4 жыл бұрын
The 6 ball has a line under it to avoid such confusion. Maybe we should also start using ÷ again... you know... for puzzles sake.
@BryndanMeyerholtTheRealDeal
4 ай бұрын
I used the 13, and 11, and then turned the 9 upside down to make a 6, to make 30.
@RealMesaMike
Ай бұрын
There is no 9 ball shown. It's solid green, so it's a 6 ball, albeit upside down.
@gteixeira
8 ай бұрын
Unless you can put the 9 ball upside down as 6 it is impossible to add three odd numbers into an even number.
@vizionthing
4 жыл бұрын
A shining example of the wrong question, exams and teachers are full of them.
@kakhipudhi
5 ай бұрын
Nice trick, maybe cheap, but 'changing your perspective' is valuable in solving problems.
@tanmaybisht_iitbhu
4 жыл бұрын
I guessed Factorials could be the way to solve it... like 11, 13 and 3! But forgot they were just billiards balls, they are not any mathematical figures, which i could find factorial of....
@sauravanand7472
3 жыл бұрын
In this question as you said we can use more than once any number , but use three balls , so 3+3 +7+7+5+5 = 30
@budsellers
5 ай бұрын
The problem with this solution is that the nine ball ALWAYS has an underline indicating that it is in fact a number 9
@sayemali1565
4 жыл бұрын
Take the 1 and 3 and put them alongside in one position to make them 13. Add 17 to any of the other positions.
@billdwyer4129
4 жыл бұрын
Another solution: since you can only use three balls and you can use a ball more than once, by only using the 5, the 3, and the 1, you get: 5+5+5+5+3+3+3+1=30 Only three balls used!!!
@3dplanet100
4 жыл бұрын
Makes sense. Notice that the numbers are not printed; they are balls with numbers printed, and it was actually a 6 upside-down.
Пікірлер: 1,4 М.