In the second of a two-part series on Rates and Work problems, instructor Whitney Garner introduces rate problems in general and then takes us on a deep dive of Work story problems. This time we're spotting the different "flavors" of work problems and the most effective methods for handling each. We'll also circle back and use our new understanding of "working together" to develop another shortcut for distance problems! By the end of this lesson, you'll have a solid cheat sheet for dealing with all the Work problems you'll see on the GMAT.
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0:00 Intro
0:50 Intro to the Rate Family of Questions
1:50 Building the Rate Cheat Sheet
7:40 The Fundamental Rate Equation = Work
10:45 Question 1 (basic work)
13:10 Question 1 Solution
16:10 Understanding ""Work Together at Different Rates"" examples
19:40 Back to the Cheat Sheet - Working Together at Different Rates
21:20 Question 2 (Together, Different Rates)
24:50 Question 2 Solution
28:45 Question 3 (Together, Different Rates)
31:00 Question 3 Solution
32:30 Question 4 (Together, Different Rates - Against Variation)
35:00 Question 4 Solution
37:10 Question 5 (Together, Different Rates - Estimation Variation)
39:30 Question 5 Solution
42:00 Question 3 Revisited (Estimation Variation)
43:00 Understanding ""Work Together at Same Rate""
45:10 Question 6 (Together, Same Rate)
48:25 Question 6 Solution
50:00 Question 7 (Together, Same Rate)
52:25 Question 7 Solution
55:00 Working together in Distance Problems
59:00 Back to the Cheat Sheet - Working together in Distance
1:00:22 Question 6 (one last work problem)
1:03:00 Question 6 Solution
1:04:30 Accessing Free Stuff & Signing Off!
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