Chapter 4 Quadratic Equations Page no. 86
Example 15: A motor boat whose speed is 18km/h in still water takes 1hour more to go 24km upstream than to return downstream to the same spot. Find the speed of the stream.
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Негізгі бет A motor boat whose speed is 18km/h in still water takes 1hour more to go 24km upstream than to.....
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