A man can row upstream at 7 kmph and downstream at 10 kmph.Find man's rate in still water and the rate of current?

Arithmetic Aptitude

1)	A man can row upstream at 7 kmph and downstream at 10 kmph.Find man's rate in still water and the rate of current?

A) 1.5 km/hr
B) 2.5 km/hr
C) 2.3 km/hr
D) 3 km/hr

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