Question
P6.SP.TL.18012288-A1
Avery and Lilian 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. Avery completed a full round in 50 s. Lilian completed a full round in 40 s.
  1. How long would it take for Lilian to overtake Avery for the first time?
  2. How far was Lilian ahead of Avery after 20 s?
4 m
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Primary 6 SPEED P6.SP.TL.18012288

26 May 2024, 04:30 AM

Avery and Lilian 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. Avery completed a full round in 50 s. Lilian completed a full round in 40 s.
  1. How long would it take for Lilian to overtake Avery for the first time?
  2. How far was Lilian ahead of Avery after 20 s?
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