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27 May, 21:21

Rahul walks to his school which is at a distance of 3km from his home in 30 minutes. on reaching he finds that the school is closed and comes back by a bicycle with his friend and reaches home in 20 minutes. Calculate his average speed in km/hr.

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  1. 27 May, 21:30
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    3km per 30m equals 6km per hour

    3km in 20m = 9 km/h

    6+9=15

    15/2 = 7.5

    Your answer is 7.5 km/h
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