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A train that is moving at an average speed of 40 km/h  reaches its destination on time. When its average speed reduces to 35 km/h , then it reaches its destination 15 minutes late. The distance travelled by the train, is

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Important Questions on Work, Time, Distance and Speed

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A man rows to a place 45 k.ms distant and back in 12 hours. He realises that he can row 5 k.ms downstream in the same time as 3 k.ms against the stream. The velocity of the stream is
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'A' and 'B' complete a work in 12 days, 'B' and 'C' in 8 days and 'C' and 'A' in 16 days. 'A' left after working for 3 days. In how many days more will 'B' and 'C' finish the remaining work?
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A can do a piece of work in 8 days and B alone can do the same work in 10 days. A and B agreed to do the work together for ₹ 720. With the help of C, they finished the work in 4 days. How much as to be paid?
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A train 'X leaves station 'A' at 3 p.m and rea~hes station 'B' at 4.30 p.m., while another train 'Y' leaves station 'B' at 3.00 p.m and reaches station 'A' at 4.00 p.m. These two trains cross each other at
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Taps 'A' and 'B' can fill a tank is 3712 minutes and 45 minutes respectively. Both taps are opened and after some time tap 'B' is turned off. The tank is filled completely in exactly 30 minutes, if tap 'B' is turned off after
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Two men and seven boys can do a work in 14 days. There men and eight boys can do the same work in 11 days. Further eight men and six boys can do three times the amount of this work in
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A boat travels upstream from A to B and back from B to A in 5 h. The speed of the boat in still water is 8 km/h and the speed of the current is 4 km/h. Then, the distance from A to B is