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B 2 hours. C 2 hours 40 minutes. Answer: Option C. Adding equation 1 and equation 2 , we get,. Therefore, time taken by the boat to travel 32 km is,. Question No: A man goes by motor boat a certain distance upstream at 15 kmph and returns the same downstream at 20 kmph. The total time taken for the journey was 7 hrs.
Find how far did he go? A 30 km. B 60 km. C 90 km. D km. Answer: Option B. A man can row 5 km per hr in still water. If the river is flowing at 1 km per hr, it takes him 75 minutes to row to a place and back.
How far is the place? Question No. A boat running upstream takes 8 hours 48 minutes to cover a certain distance, while it takes 4 Boats And Streams Problems With Solutions Pdf Analysis hours to cover the same distance running downstream. What is the ratio between the speed of the boat and speed of the water current respectively? D None of these. A boat takes 90 minutes less to travel 36 miles downstream than to travel the same distance upstream. If the speed of the boat in still water is 10 mph, the speed of the stream is:.
A 2 mph. C 3 mph. D 4 mph. Answer: Option A. Let the speed of the stream x mph. 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 and come back, how far is the place? Let the required distance be x km. Answer: Option D. A man takes twice as long to row a distance against the stream as to row the same distance in favour of the stream.
The ratio of the speed of the boat in still water and the stream is:. Let man's rate upstream be x kmph. 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 same time as 3 km against the stream. The rate of the stream is:.
Suppose he move 4 km downstream in x hours. Blogger Comment Facebook Comment. Newer Post Older Post Home.
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