Question
Elijah and Emily 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. Elijah completed a full round in 50 s. Emily completed a full round in 40 s.
  1. How long would it take for Emily to overtake Elijah for the first time?
  2. How far was Emily ahead of Elijah after 20 s?
4 m
(a)

Click button first when a symbol is required. X

(b)

Click button first when a symbol is required. X

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