a man can row 16 kmph in still water.it takes him thrice as long to row up as to row down the river.find the rate of stream  Choose one.
A) 8 km/hr. B) 6 km/hr. C) 9 km/hr. D) 15 km/hr. E) 11 km/hr.
Let manâ€™s rate upstream be x kmph.then ,his rate downstream=3xkmph.   So,2x=16 or x=8.   Rate upstream=8 km/hr,rate downstream=24 km/hr.   Hence,rate of stream=1/2(24-8)km/hr=8 km/hr.   8 km/hr.nswer is 8 km/hr..
<result>A</result>
a man can row 16 kmph in still water.it takes him thrice as long to row up as to row down the river.find the rate of stream