Question
P6.SP.TL.18012288-A1
Robert and Scarlett were planning to run on a circular track with a circumference of 800 m. Both of them started jogging together at the same start point and moved round the track in a clockwise direction at uniform speeds. Robert completed a full round in 80 s. Scarlett completed a full round in 40 s.
  1. How long would it take for Scarlett to overtake Robert for the first time?
  2. How far was Scarlett ahead of Robert after 20 s?
4 m
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Primary 6 SPEED P6.SP.TL.18012288

17 Jun 2024, 04:35 PM

Robert and Scarlett were planning to run on a circular track with a circumference of 800 m. Both of them started jogging together at the same start point and moved round the track in a clockwise direction at uniform speeds. Robert completed a full round in 80 s. Scarlett completed a full round in 40 s.
  1. How long would it take for Scarlett to overtake Robert for the first time?
  2. How far was Scarlett ahead of Robert after 20 s?
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