Question
The difference between the time taken by a boat to travel
360 km upstream and 240 km downstream is 10 hours. The speed of the boat and the stream are ‘5x’ km/hr and ‘x’ km/hr, respectively. Find x.Solution
ATQ,
[360 / (5x - x)] - [240 / (5x + x)] = 10
[360 / 4x] - [240 / 6x] = 10
[540 / 6x] = 10
6x = 54
x = 9
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