Question

a motorboat travels 40 km downstream in 5 hours and 30 km upstream in 6 hours find the speed of motor boat in kmph
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Answer 1

Answer:

Explanation:

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Answer 2

Answer: 6.5 kmph

Explanation:

The relative speed of Boat while downstream, S(b)+S(s) = 40/5= 8kmph ....(1)

The relative speed of Boat while upstream, S(b)-S(s) = 30/6 = 5kmph ....(2)

(1) + (2) => 2S(b) = 13

=> S(b) = 6.5kmph .