40km

  1. V

    A car travels 40km in 24minutes.Find its average speed in km/h. If each initial...

    ...measurement is liable to 5%? error, find the percentage error in the speed?
  2. W

    How long would it take to travel 40km in 60km/h?

    Is it 40 minutes? Could someone give me the formula for working these kind of things out?
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