Question
PSLE
At 20 55, Lynn started driving at 60 km/h from her home to a supermarket 21 km away. She was at the supermarket for 2 h 38 min.
  1. What time did she leave the supermarket?
  2. After leaving the supermarket, Lynn drove back along the same route and took 20 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 20 55, Lynn started driving at 60 km/h from her home to a supermarket 21 km away. She was at the supermarket for 2 h 38 min.
  1. What time did she leave the supermarket?
  2. After leaving the supermarket, Lynn drove back along the same route and took 20 min to reach home. What was her average speed, in km/h, for the journey home?