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A boat goes 8 km upstream and 12 km ...

A boat goes 8 km upstream and 12 km downstream in 7 hourse . It goes 9 km upstream and 18 km downstream in 9 hourse .What is the speed (in km/h) of the boat in still water ?

A

5

B

4

C

2

D

3

Text Solution

Verified by Experts

The correct Answer is:
D
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