Arjun takes 5 hrs. to swim upstream of 40 km where as he takes only 2 hrs. to swim downstream of 20 km. Find the speed of Arjun in still water.

Arjun takes 5 hrs. to swim upstream of 40 km where as he takes only 2

1.	Arjun takes 5 hrs. to swim upstream of 40 km where as he takes only 2 hrs. to swim downstream of 20 km. Find the speed of Arjun in still water.
A.	15 kmph
B.	10 kmph
C.	12 kmph
D.	9 kmph
Answer» E.

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Arjun takes 5 hrs. to swim upstream of 40 km where as he takes only 2 hrs. to swim downstream of 20 km. Find the speed of Arjun in still water.

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