Question
The time difference for a boat to travel 600 km upstream
and 300 km downstream is 15 hours. The boat moves at a speed of ‘6x’ km/hr and the stream flows at ‘x’ km/hr. What is the value of x?Solution
ATQ,
[600 / (6x - x)] - [300 / (6x + x)] = 15
[600 / 5x] - [300 / 7x] = 15
[4200 / 35x] = 15
35x = 4200 / 15
35x = 280
x = 8
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