Question

Speed of a boat in still water is 48 km/h and the speed of stream is 25% of the speed of boat in still water. If the time taken by boat to cover a distance 'D' km in downstream is 2 hours less than the time taken by boat to cover the same distance in upstream, then find the value of 'D'.

Q: Answer-Speed of a boat in still water is 48 km/h and the speed of stream is 25% of the speed of boat in sti...

Speed of stream 0.25 X 48 12 kmh Upstream speed 48 - 12 36 kmh Downstream speed 48 12 60 kmh ATQ We have, D36 - D60 2 Or, 5D - 3D 180 2 Or, 2D 360 So, D 180 Therefore, the value of D is 180.

A 360

B 270

C 180

D 540

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Speed of a boat in still water is 48 km/h and the speed of stream is 25% of the speed of boat in still water. If the time taken by boat to cover a distance 'D' km in downstream is 2 hours less than the time taken by boat to cover the same distance in upstream, then find the value of 'D'.

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