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A boat can travel at a speed of 8 Kmph u...

A boat can travel at a speed of 8 Kmph upstream and 10 Kmph downstream. If it travels a distance of 40 Km upstream and 50 km downstream, then the average speed of the entire journey will be

A

8

B

10

C

12

D

9

Text Solution

Verified by Experts

The correct Answer is:
D
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