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

04 Jul 2024, 06:04 AM

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