Boats and Streams Practice Question and Answer
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Q: A boat goes 15 km in an hour in still water, and takes thrice the time to cover the same distance upstream. The speed of the current (in km / hr) is –
554 062fb40bdd30c675eef59e1bf
62fb40bdd30c675eef59e1bf- 113 km/hrfalse
- 214 km/hrtrue
- 313 km/hrfalse
- 414 km/hrfalse
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Answer : 2. "14 km/hr"
Q: A boat covers 48 km. upstream and 72 km. downstream in 12 hours, while it covers 72 km. upstream and 48 km. downstream is 13 hours. The speed of stream is -
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60f7d5753ca0726dff34f9e6- 12.5 kmphfalse
- 24 kmphfalse
- 32 kmphtrue
- 42.2 kmphfalse
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Answer : 3. "2 kmph"
Q: A boat goes from A to B in upstream and come back from B to A downstream taking a total time of 3.5 hours. If the speed of boat in still water is 7 km/hr and the speed of stream is 5 km/hr. Find the distance between A and B.
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605a95cf281aeb2a4f44a1cf- 14 kmfalse
- 26 kmtrue
- 35 kmfalse
- 47.5 kmfalse
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Answer : 2. "6 km"
Q: If a sailer sails 12 km distance within 5 hours against the flow of a river. If he sails 22 km distance in same time along the flow of the river. Then velocity of the river is _______
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5e788081948fba6459010c46- 11 km / hourtrue
- 22 km / hourfalse
- 31.5 km / hourfalse
- 42.5 km / hourfalse
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Answer : 1. "1 km / hour "
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