A man can row at a speed of x km/h in still water. If in a stream which is flowing at a speed of y km/h it takes him z hours to row to a place and back, then what is the distance between the two places?

A man can row at a speed of x km/h in still water. If in a stream whic

1.	A man can row at a speed of x km/h in still water. If in a stream which is flowing at a speed of y km/h it takes him z hours to row to a place and back, then what is the distance between the two places?
A.	z(x2 - y2)/2y
B.	z(x2 - y2)/2x
C.	(x2 - y2)/2zx
D.	z(x2 - y2)/x
Answer» C. (x2 - y2)/2zx

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A man can row at a speed of x km/h in still water. If in a stream which is flowing at a speed of y km/h it takes him z hours to row to a place and back, then what is the distance between the two places?

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