A man can row upstream at 7 kmph and downstream at 10kmph.find man’s rate in still water and the rate of current.
Choose the correct choice from the following answers
A) 1.5 km/hr
B) 1 km/hr
C) 1.5 km/min
D) 0.5 km/hr
E) 1.75 km/hr
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.   1.5 km/hrnswer is 1.5 km/hr.
<result>A</result>
A man can row upstream at 7 kmph and downstream at 10kmph.find man’s rate in still water and the rate of current.