The time taken by a man to row his boat upstream is twice the time taken by him to row the same distance downstream. If the speed of the boat in still water is 42 kmph, find the speed of the stream?

Related Mcqs:

A man can row 9 1/3 km/hr in still water and he finds that is thrice as much time to row u p than as to row down the same distance in river. The speed of the current is:________?

A. 3 1/3 km/hr B. 3 1/9 km/hr C. 1 ¼ km/hr D. 4 2/3 km/hr...

A man swims downstream 72 km and upstream 45 km taking 9 hours each time; what is the speed of the current?

A. 3 kmph B. 1.5 kmph C. 13 kmph D. 6.5 kmph...

A man can row 6 kmph in still water. When the river is running at 1.2 kmph, it takes him 1 hour to row to a place and black. How far is the place?

A. 3.12 km B. 2.88 km C. 3 km D. 2 km...

A man can row a boat at 20 kmph in still water. If the speed of the stream is 6 kmph, what is the time taken to row a distance of 60 km downstream?

A. 20/6 hours B. 27/2 hours C. 30 hours D. 30/13 hours...

A man can row 30 km downstream and 20 km upstream in 4 hours. He can row 45 km downstream and 40 km upstream in 7 hours. Find the speed of man in still water?

A. 15 kmph B. 10 kmph C. 12 kmph D. 12.5 kmph E. None of these...