Question

Rahul can row a certain distance downstream in 6 hour and return the same distance in 9 hour. If the speed of Rahul in still water is 12 km/hr, Find the speed of the stream.

Answer 1

Answer:

2.4 km/hr

Step-by-step explanation:

Let the speed of the stream be x km/hr

Thus, downward stream = (12+x)

and upward stream = (12−x)

suppose the distance travelled be y, Given:

y/(12+x) =6 and y/(12−x) =9

On solving these two equations we get:

x = 2.4 km/hr

Answer 2

Ans

-2/3

I hope it is helpful