Question
PSLE
At 11 43, Sabrina started driving at 90 km/h from her home to a reservoir 42 km away. She was at the reservoir for 1 h 15 min.
  1. What time did she leave the reservoir?
  2. After leaving the reservoir, Sabrina drove back along the same route and took 24 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 11 43, Sabrina started driving at 90 km/h from her home to a reservoir 42 km away. She was at the reservoir for 1 h 15 min.
  1. What time did she leave the reservoir?
  2. After leaving the reservoir, Sabrina drove back along the same route and took 24 min to reach home. What was her average speed, in km/h, for the journey home?