A boat travels 24 km upstream in 6 hours and 20 km downstream in 4 hours Then the speed of boat in still water and the speed of current water are respectively:

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A boat travels 24 km upstream in 6 hours and 20 km downstream in 4 hours Then the speed of boat in still water and the speed of current water are respectively:

A4 kmph and 3 kmph

B4.5 kmph and 0.5 kmph

C4 kmph and 2 kmph

D5 kmph and 2 kmph

Answer:

B. 4.5 kmph and 0.5 kmph

Read Explanation:

Let the speed of boat in still water = X kmph Speed of water = Y kmph Relative speed of boat in upstream = X – Y = 24/6 = 4 kmph …… (1) Relative speed of boat in downstream = X+ Y = 20/4 = 5 kmph …… (2) After solving these two equations : X = 4.5 kmph and Y = 0.5 kmph

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A boat travels 24 km upstream in 6 hours and 20 km downstream in 4 hours Then the speed of boat in still water and the speed of current water are respectively:

B. 4.5 kmph and 0.5 kmph

Read Explanation:

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