Question
PSLE
At 19 42, Hilda started driving at 64 km/h from her home to a library 32 km away. She was at the library for 2 h 35 min.
  1. What time did she leave the library?
  2. After leaving the library, Hilda 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 19 42, Hilda started driving at 64 km/h from her home to a library 32 km away. She was at the library for 2 h 35 min.
  1. What time did she leave the library?
  2. After leaving the library, Hilda 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?