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A boat travels 60 kilometres downstre...

A boat travels 60 kilometres downstream and 20 kilometers upstream in 4 hours .The same boat travels 40 kilometres down stream and 40 kilometres up- stream in 6 hours .What is the speed (in km/hr)of the stream ?

A

24

B

16

C

18

D

20

Text Solution

Verified by Experts

The correct Answer is:
B
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