Question
Claire and John 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. Claire completed a full round in 60 s. John completed a full round in 40 s.
  1. How long would it take for John to overtake Claire for the first time?
  2. How far was John ahead of Claire after 15 s?
4 m
(a)

Click button first when a symbol is required. X

(b)

Click button first when a symbol is required. X

Claire and John 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. Claire completed a full round in 60 s. John completed a full round in 40 s.
  1. How long would it take for John to overtake Claire for the first time?
  2. How far was John ahead of Claire after 15 s?