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A salesman travels a distance of 50 k...

A salesman travels a distance of 50 km in 2 hours and 30 minutes. How much faster, in kilometres per hour, n a n average must he travel to make such a trip in `5/6` hour less time? `10` b. `20` c. `30` d. none of these

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RS AGGARWAL-TIME AND DISTANCE-All Questions
  1. Anna left for city A form city B at 5:20 a.m. She travelled at the s...

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  2. A n aeroplane covers as certain distance at a speed of 240 kmph in 5...

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  3. A salesman travels a distance of 50 km in 2 hours and 30 minutes. H...

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  4. A person has to cover a distance of 6 km in 45 minutes. If he covers ...

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  5. A man performs 3/5 of the total journey by rail, 7/(20) by bus and...

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  6. A train is scheduled to cover the distance between two stations 46 km...

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  7. How long must a driver take to drive the final 70 miles of a trip if h...

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  8. A can complete a journey in 10 hours. He travels first half of the ...

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  9. A motorcyclist completes a certain journey in 5 hours. He covers on...

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  10. A person travels equal distances with speeds of 3 km/hr, 4 km/hr an...

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  11. A person travels 285 km in 6 hours in two stages. In the first part...

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  12. A is faster than B. A and B each walk 24 km. the sum of their speed...

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  13. A person travels from P to Q at a speed of 40 kmph and returns by i...

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  14. An aeroplane flies from place A to place B at the speed of 500 km/hr. ...

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  15. A car covers a distance from Town I to Town II at the speed of 56 km/h...

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  16. A man can walk uphill at the rate of 2 1/2 km/hr and downhill at the ...

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  17. A man drives 150 km to the seashore in 3 hours 20 min. He returns fro...

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  18. The average speed of a train in the onward journey is 25% more than th...

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  19. I started on my bicycle at 7 a.m. to reach a certain place . After goi...

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  20. A motorist travels to a place 150 km away at an average speed of 50...

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