Question

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

Answer 1

Hey there!

It's easy:

Rate in still water
= 1/2 (10 + 7) km/hr
= 8.5 km/hr

Rate of current
= 1/2 (10 - 7) km/hr
= 1.5 km/hr

Hope it helps !

Answer 2

hey there,

according to question ,

here, Given, upstream = 7kmph

Downstream = 10kmph.

we have to find out rate in still water and the rate of current.

so, Rate in still water = 1 / 2 (10 + 7) km/hr
= 8.5 km/hr.

Rate of current = 1 / 2(10 - 7) km/hr
= 1.5 km/hr.

Therefore, Rate in still water = 8.5 km/hr.
and , Rate of current = 1.5 km/hr.

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BEST OF LUCK ;-)

#akashmandal.