Question
P6.SP.TL.18012288-A1
Grace and Robert were planning to run on a circular track with a circumference of 1000 m. Both of them started jogging together at the same start point and moved round the track in a clockwise direction at uniform speeds. Grace completed a full round in 50 s. Robert completed a full round in 40 s.
  1. How long would it take for Robert to overtake Grace for the first time?
  2. How far was Robert ahead of Grace after 25 s?
4 m
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Primary 6 SPEED P6.SP.TL.18012288

18 May 2024, 03:11 PM

Grace and Robert were planning to run on a circular track with a circumference of 1000 m. Both of them started jogging together at the same start point and moved round the track in a clockwise direction at uniform speeds. Grace completed a full round in 50 s. Robert completed a full round in 40 s.
  1. How long would it take for Robert to overtake Grace for the first time?
  2. How far was Robert ahead of Grace after 25 s?
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