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Q:

A bus can cover a distance of 420 km in 7 hours. How much will the speed have to be increased to cover this distance in 6 hours?

  • 1
    7. 5 km/h
  • 2
    8 km/h
  • 3
    5 km/h
  • 4
    10 km/h
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Answer : 4. "10 km/h"

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