a man rows his boat 85 km downstream and 45 km upstream, taking 2 1/2 hours ea

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Question

a man rows his boat 85 km downstream and 45 km upstream, taking 2 1/2 hours each time. find the speed of the stream?

Options:

A . 5 kmph

B . 6 kmph

C . 7 kmph

D . 8 kmph

Answer: Option D
Explanation :

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Question 1. 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 2. 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:

Question 3. a boat covers a certain distance downstream in 1 hour, while it comes back in 11⁄2 hours. if the speed of the stream....what is the speed of the boat in still water?

Question 4. 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 5. a boat covers a certain distance downstream in 1 hour, while it comes back in 11⁄2 hours. if the speed of the stream....what is the speed of the boat in still water?

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 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 8. 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 9. 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 10. 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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