Question
P6.SP.TL.18012288-A1
Elijah and David were planning to run on a circular track with a circumference of 900 m. Both of them started jogging together at the same start point and moved round the track in a clockwise direction at uniform speeds. Elijah completed a full round in 90 s. David completed a full round in 50 s.
  1. How long would it take for David to overtake Elijah for the first time?
  2. How far was David ahead of Elijah after 18 s?
4 m
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Primary 6 SPEED P6.SP.TL.18012288

19 May 2024, 03:01 PM

Elijah and David were planning to run on a circular track with a circumference of 900 m. Both of them started jogging together at the same start point and moved round the track in a clockwise direction at uniform speeds. Elijah completed a full round in 90 s. David completed a full round in 50 s.
  1. How long would it take for David to overtake Elijah for the first time?
  2. How far was David ahead of Elijah after 18 s?
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