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Einstein goes from Ahmedabad to Luknow a...

Einstein goes from Ahmedabad to Luknow at the speed of 40 km/hr and returned at the speed of 60 km/hr. The average speed of Einstien during the whole journey is :

A

48 km/hr

B

24 km/hr

C

50 km/hr

D

none of these

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ARIHANT SSC-AVERAGES-Final Round
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