Question
PSLE
At 17 45, Erika started driving at 72 km/h from her home to a boutique 42 km away. She was at the boutique for 2 h 36 min.
  1. What time did she leave the boutique?
  2. After leaving the boutique, Erika drove back along the same route and took 36 min to reach home. What was her average speed, in km/h, for the journey home?
4 m
(a)

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(b)

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PSLE
At 17 45, Erika started driving at 72 km/h from her home to a boutique 42 km away. She was at the boutique for 2 h 36 min.
  1. What time did she leave the boutique?
  2. After leaving the boutique, Erika drove back along the same route and took 36 min to reach home. What was her average speed, in km/h, for the journey home?