Question
PSLE
At 15 49, Gillian started driving at 90 km/h from her home to a mall 39 km away. She was at the mall for 2 h 29 min.
  1. What time did she leave the mall?
  2. After leaving the mall, Gillian 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 15 49, Gillian started driving at 90 km/h from her home to a mall 39 km away. She was at the mall for 2 h 29 min.
  1. What time did she leave the mall?
  2. After leaving the mall, Gillian 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?