Question
Zane drove from Town C to Town D which was 456 km away. He started from Town C at an average speed of 63 km/h. He maintained this speed for 4 h before increasing it by 4 km/h for the rest of the journey to Town D.
  1. How long did he take to complete the whole journey?
  2. What was his average speed from Town C to Town D?
4 m
(a)

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(b)

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Zane drove from Town C to Town D which was 456 km away. He started from Town C at an average speed of 63 km/h. He maintained this speed for 4 h before increasing it by 4 km/h for the rest of the journey to Town D.
  1. How long did he take to complete the whole journey?
  2. What was his average speed from Town C to Town D?