Question
Valen drove from Town K to Town L which was 400 km away. He started from Town K at an average speed of 78 km/h. He maintained this speed for 3 h before increasing it by 7 km/h for the rest of the journey to Town L.
  1. How long did he take to complete the whole journey?
  2. What was his average speed from Town K to Town L?
4 m
(a)

Click button first when a symbol is required. X

(b)

Click button first when a symbol is required. X

Valen drove from Town K to Town L which was 400 km away. He started from Town K at an average speed of 78 km/h. He maintained this speed for 3 h before increasing it by 7 km/h for the rest of the journey to Town L.
  1. How long did he take to complete the whole journey?
  2. What was his average speed from Town K to Town L?