Question
City J and City K were 612 km apart. A sedan travelled from City J towards City K. At the same time, a van started from City K to City J. After travelling 114 h, the two vehicles were still 432 km apart. If the ratio of the average speed of the van to that of the sedan was 4 : 5, find
  1. the average speed of the van.
  2. the time taken for them to meet travelling the rest of the journey. Express your answer in h.
4 m
(a)

Click button first when a symbol is required. X

(b)

Click button first when a symbol is required. X

City J and City K were 612 km apart. A sedan travelled from City J towards City K. At the same time, a van started from City K to City J. After travelling 114 h, the two vehicles were still 432 km apart. If the ratio of the average speed of the van to that of the sedan was 4 : 5, find
  1. the average speed of the van.
  2. the time taken for them to meet travelling the rest of the journey. Express your answer in h.