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Boats & Streams Quiz : 02.06.2018

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Question 1

A man can row 6 km/h in still water. He takes thrice as much time to row upstream as to row downstream for the same distance. Find speed of water.

Question 2

A boatman can go certain distance downstream in 2 hrs. and upstream same distance in 3 hrs. If the stream flow at the speed of 4 km/h, find the speed of boat in still water.

Question 3

Three cities A, B and C are alongside a river. B is the exactly midway between A and C. A man takes 4hr 30min to row from A to C. And takes 6hr to row from A to B and back. How much time will he take to row from C to A?

Question 4

Two boats A and B are 80 km apart. Their speed in still water are 4 km/h and 6 km/h. Both start at the same time towards each other. If A going downstream and B going upstream, after how much time will they meet each other?

Question 5

A man can row 15 km/h in still water. When the river is running at 3 km/h it takes him 5 hrs to row to a place and back. How far is the place?

Question 6

A boat travels upstream from A to B and downstream from B to A in 3 hrs. The distance between A and B is 4 km and the speed of water is 1 km/h. What is the speed of boat?

Question 7

Ritika can row upstream 20 kmph and downstream 40 kmph. Find the rate of ritika in still water and rate of stream?

Question 8

Rishikesh to Haridwar is downstream journey on a stream which flows at the speed of 2.5 kmph. Boats A & B run shuttle services between these two places which are 150 km apart. Boat A which starts from Rishikesh has a still speed water of 12.5 kmph, while boat B which starts from Haridwar at the same time has a still water speed 7.5 kmph. When will tow boats meet for the first time?

Question 9

A boat goes 4 km upstream and 4 km downstream in 1 hour. The same boat goes 5 km downstream and 3 km upstream in 55 minutes. What is the speed (in km/hr) of boat in still water?

Question 10

A motorboat in still water travel at a speed of 36 km/h. It goes 56 km upstream in 1hr 45 minutes. The time taken by it to cover the same distance down the stream will be.
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