A car travels from $A$ to $B$ at a speed of $20 k m h^{- 1}$ and returns at a speed of $40 k m h^{- 1}$ . What is the average velocity of the car for the whole journey.?

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Solution

The correct option is B 24

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Similar questions

20 k m h^{- 1}

30 k m h^{- 1}

A

B

20 km/h

30 km/h

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