Question
PSLE
At 18 54, Sarah started driving at 90 km/h from her home to a clinic 45 km away. She was at the clinic for 2 h 26 min.
  1. What time did she leave the clinic?
  2. After leaving the clinic, Sarah drove back along the same route and took 48 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 18 54, Sarah started driving at 90 km/h from her home to a clinic 45 km away. She was at the clinic for 2 h 26 min.
  1. What time did she leave the clinic?
  2. After leaving the clinic, Sarah drove back along the same route and took 48 min to reach home. What was her average speed, in km/h, for the journey home?