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Harish covers a certain distance by car driving at 70km/hr and he returns back at the starting point riding on a scooter at 55km/hr find his average speed for the whole journey

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UPKAR PUBLICATION -TIME & DISTANCE-QUESTION BANK
  1. Walking 3/4 of his usual speed a peon is 10min too late to his office ...

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  2. A man covers a certain distance between his house and office on scoote...

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  3. Harish covers a certain distance by car driving at 70km/hr and he retu...

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  4. Convert 45km/hr into metre/sec

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  8. Excluding stoppages, the speed of a bus is 54 kmph and including stopp...

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  15. A man travels 2/15 of the total journey by rail,9/20 by car and the re...

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  17. Two cyclists A and B start from the same place at the same time one go...

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