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ICSE Class 6 Answered

A boy walks at a speed of 20 km/hr and reaches his school in 30 mins. What should his speed be if he wishes to reach school 10 minutes earlier?
Asked by Topperlearning User | 23 Oct, 2017, 12:12: PM
answered-by-expert Expert Answer

Since, 20 km/ hr requires 30 mins of walk,

So, Speed required to complete the walk in 20 mins = begin mathsize 12px style fraction numerator 20 cross times 20 over denominator 30 end fraction equals 40 over 3 equals 13 1 third space k m divided by h r end style

Answered by | 23 Oct, 2017, 02:12: PM

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