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A man travels from town P to town Q at 40 km/h and returns along the same route at 60 km/h. His average speed for the whole journey is –

1254Medium DSSSB TGT Computer Science 0 replies

A man travels from town P to town Q at 40 km/h and returns along the same route at 60 km/h. His average speed for the whole journey is –

  • A45 km/h
  • B50 km/h
  • C48 km/h
  • D52 km/h
Correct answer: C

Explanation

For equal distances, average speed = 2 × 40 × 60/(40 + 60) = 48 km/h.

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