Question:If a man can swim downstream at `6` kmph and upstream at `2` kmph his speed in still water is : 

A `4 km∕hr` 
B `2 km∕hr` 
C `3 km∕hr` 
D ` 2.5 km∕hr` 

+ Answer
A 

+ Explanation
Speed in still water

`= 1/2 (6 + 2) kmph`

`= 4 kmph`

+ Report

Irin Moni

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