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

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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 . 4 km/hr

B . 5 km/hr

C . 6 km/hr

D . 10 km/hr

Answer: Option B

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More Questions on This Topic :

Question 1. A boat running upstream takes 8 hours 48 minutes to cover a certain distance, while it takes 4 hours to cover the same d....of the boat and speed of the water current respectively?

Question 2. In one hour, a boat goes 11 km/hr along the stream and 5 km/hr against the stream. The speed of the boat in still water ....speed of the boat in still water (in km/hr) is:

Question 3. A boat running downstream covers a distance of 16 km in 2 hours while for covering the same distance upstream, it takes ....What is the speed of the boat in still water?

Question 4. The speed of a boat in still water in 15 km/hr and the rate of current is 3 km/hr. The distance travelled downstream in ....3 km/hr. The distance travelled downstream in 12 minutes is:

Question 5. A boat takes 90 minutes less to travel 36 miles downstream than to travel the same distance upstream. If the speed of th....water is 10 mph, the speed of the stream is:

Question 6. A man can row at 5 kmph in still water. If the velocity of current is 1 kmph and it takes him 1 hour to row to a place a....a place and come back, how far is the place?

Question 7. A boat covers a certain distance downstream in 1 hour, while it comes back in $$1\frac{1}{2}$$ hours. If the speed of th....what is the speed of the boat in still water?

Question 8. A boatman goes 2 km against the current of the stream in 1 hour and goes 1 km along the current in 10 minutes. How long ....will it take to go 5 km in stationary water?

Question 9. A man can row three-quarters of a kilometer against the stream in $$11\frac{1}{4}$$ minutes and down the stream in $$7\f....speed (in km/hr) of the man in still water is:

Question 10. Speed of a boat in standing water is 9 kmph and the speed of the stream is 1.5 kmph. A man rows to a place at a distance....the starting point. The total time taken by him is:

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