a motorboat, whose speed in 15 km/hr in still water goes 30 km downstream and

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Question

a motorboat, whose speed in 15 km/hr in still water goes 30 km downstream and comes back in a total of 4 hours 30 minutes. the speed of the stream (in km/hr) is:

Options:

A . 10

B . 6

C . 5

D . 4

Answer: Option C
Explanation :

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Question 2. the speed of a boat in still water in 22 km/hr and the rate of current is 4 km/hr. the distance travelled downstream i....4 km/hr. the distance travelled downstream in 24 minutes is:

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Question 5. a motorboat, whose speed in 15 km/hr in still water goes 30 km downstream and comes back in a total of 4 hours 30 minu....30 minutes. the speed of the stream (in km/hr) is:

Question 6. the speed of a boat in still water in 22 km/hr and the rate of current is 4 km/hr. the distance travelled downstream i....4 km/hr. the distance travelled downstream in 24 minutes is:

Question 7. a boatman goes 2 km against the current of the stream in 2 hour and goes 1 km along the current in 20 minutes. how lon....will it take to go 5 km in stationary water?

Question 8. a man rows to a place 48 km distant and come back in 14 hours. he finds that he can row 4 km with the stream in the sa....km against the stream. the rate of the stream is:

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