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A person can row at 10 km/hr in still wa...

A person can row at `10` km/hr in still water. The speed of the stream is `1 (1)/(9)` m/sec. The time (in hours) taken by him to row a distance of `72` km upstream is :

A

`5 (1)/(7)`

B

`10 (2)/(7)`

C

`10`

D

`12`

Text Solution

Verified by Experts

The correct Answer is:
D
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