Question
P6.SP.TL.18012288-A1
David and Elizabeth were planning to run on a circular track with a circumference of 600 m. Both of them started jogging together at the same start point and moved round the track in a clockwise direction at uniform speeds. David completed a full round in 60 s. Elizabeth completed a full round in 40 s.
  1. How long would it take for Elizabeth to overtake David for the first time?
  2. How far was Elizabeth ahead of David after 15 s?
4 m
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Primary 6 SPEED P6.SP.TL.18012288

24 May 2024, 09:32 PM

David and Elizabeth were planning to run on a circular track with a circumference of 600 m. Both of them started jogging together at the same start point and moved round the track in a clockwise direction at uniform speeds. David completed a full round in 60 s. Elizabeth completed a full round in 40 s.
  1. How long would it take for Elizabeth to overtake David for the first time?
  2. How far was Elizabeth ahead of David after 15 s?
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