A man can row 18 kmph in still water.it takes him thrice as long to row up as to row down the ...
A man can row 18 kmph in still water.it takes him thrice as long to row up as to row down the river.find the rate of stream.
Answer/Solution
9 km/hr
Steps/Work
Let man’s rate upstream be x kmph.then ,his rate downstream=3xkmph.
So,2x=18 or x=9.
Rate upstream=9 km/hr,rate downstream=27 km/hr.
Hence,rate of stream=1/2(27-9)km/hr=9 km/hr.
ANSWER D 9 km/hr
So,2x=18 or x=9.
Rate upstream=9 km/hr,rate downstream=27 km/hr.
Hence,rate of stream=1/2(27-9)km/hr=9 km/hr.
ANSWER D 9 km/hr