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Question

A guy rides his bike 20 km at an average speed of 25 kmph and again travels 24 km at an average speed of 20 kmph. What is his average speed for the entire trip?


A

22 kmph

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B

11 kmph

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C

20.9 kmph

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D

24 kmph

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E

None of these

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Solution

The correct option is A

22 kmph


Average Speed = Total distanceTotal time

Average Speed = 20+242025+2420

Average Speed = 442 = 22 kmph


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