Question
Justin drove from Town Q to Town R which was 420 km away. He started from Town Q at an average speed of 69 km/h. He maintained this speed for 4 h before increasing it by 5 km/h for the rest of the journey to Town R.
  1. How long did he take to complete the whole journey?
  2. What was his average speed from Town Q to Town R?
4 m
(a)

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(b)

Click button first when a symbol is required. X

Justin drove from Town Q to Town R which was 420 km away. He started from Town Q at an average speed of 69 km/h. He maintained this speed for 4 h before increasing it by 5 km/h for the rest of the journey to Town R.
  1. How long did he take to complete the whole journey?
  2. What was his average speed from Town Q to Town R?