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A man takes in walking to a certain place and riding back. He would have gained by riding both ways. How long would he take to walk both ways?
(a)
(b)
(c)
(d)

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Important Questions on Time, Speed and Distance
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Two cars and are running towards each other from two different places apart. If the ratio of the speeds of the cars and is and the speed of car B is , after what time will they meet each other?

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Two trains, one and the other long are running in opposite directions on parallel rails, the first at an hour the other at an hour. How long will they take to cross each other?

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A train long passes a pole in . It also passes another train of the same length travelling in opposite direction in . The speed of the second train is _____.

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Two trains, one from station A to station B and the other from B to A start simultaneously. After meeting, the trains reach their destinations after and respectively. The ratio of their speeds is _____.

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A man rows a boat in downstream and returns upstream in . The speed of the stream (in ) is _____.

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A man can swim in still water. If the velocity of the stream is , the time taken by him to swim to a place upstream and back is _____.

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A boat goes an hour in still water but takes thrice as much time in going the same distance against the current. The speed of the current (in ) is:_____.

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A man can row at in still water. If the velocity of current is and it takes him to row to place and come back, how far is the place?
