Question
Elizabeth and Christian 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. Elizabeth completed a full round in 80 s. Christian completed a full round in 50 s.
  1. How long would it take for Christian to overtake Elizabeth for the first time?
  2. How far was Christian ahead of Elizabeth after 16 s?
4 m
(a)

Click button first when a symbol is required. X

(b)

Click button first when a symbol is required. X

Elizabeth and Christian 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. Elizabeth completed a full round in 80 s. Christian completed a full round in 50 s.
  1. How long would it take for Christian to overtake Elizabeth for the first time?
  2. How far was Christian ahead of Elizabeth after 16 s?