Subject
Quantitative Aptitude
Topic
Speed & Distance
A man takes twice as long to row a distance against the stream as to row the same distance in favour of the stream. The ratio of the speed of the boat (in still water) and the stream is:
A man takes twice as long to row a distance against the stream as to row the same distance in favour of the stream. The ratio of the speed of the boat (in still water) and the stream is:
ক)
2 : 1খ)
3 : 1গ)
3 : 2ঘ)
4 : 3Explanation
Let man’s rate upstream be x kmph. Then, his rate downstream = 2x kmph So, (Speed in still water) : (Speed of stream) = {(2x+x)/2} : {(2x-x)/2} = 3x/2 : x/2 = 3 : 1Related questions
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