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A man covers the first 210 km of a journ...

A man covers the first 210 km of a journey at 60 km h and the next 198 km at 66 km/h. The average speed for the whole journey is:

A

68.5 km/h

B

64 km/h

C

63 km/h

D

62.8 km/h

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The correct Answer is:
D
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