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SPEED
Question
Ken and John started on a 60-km cycling trip at the same time. They cycled at the same speed for first 12 km. For the remaining 48 km, Ken cycled faster than John. He arrived at the finishing point 40 minutes before John who was 12 km behind him. John did not change his speed throughout and completed it at 07 30.
  1. At what time did the trip begin? Give the answer in 12-hour format.
  2. What was Ken's average speed for the remaining 48 km of the trip in km/h?
4 m
(a)

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(b)

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Ken and John started on a 60-km cycling trip at the same time. They cycled at the same speed for first 12 km. For the remaining 48 km, Ken cycled faster than John. He arrived at the finishing point 40 minutes before John who was 12 km behind him. John did not change his speed throughout and completed it at 07 30.
  1. At what time did the trip begin? Give the answer in 12-hour format.
  2. What was Ken's average speed for the remaining 48 km of the trip in km/h?