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Gopal covers 100 km .He travels at a spe...

Gopal covers 100 km .He travels at a speed of 60 kmph for the first 40 km and the rest of the distance at 40 kmph .What is his average speed in kmph ?

A. 44.20

B. 45.20

C. 46.15

D. 47.20

A

B

B

D

C

A

D

C

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