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Question

A car travels from point 'A' to point 'B' which are 160 km apart in 3 hours. The car comes back to point 'A' in 2 hours. Calculate the average speed of the car.

A
0 kmh1
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B
8 kmh1
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C
16 kmh1
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D
64 kmh1
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Solution

The correct option is D 64 kmh1
The car travels from 'A' to 'B' and returns to the point 'A'.
The total distance covered:
d=160+160=320 km
Total time taken for the entire journey:
t=3+2=5h
Average speed:
va=dt=3205=64 kmh1.

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