Level 2
A race car travelled 25 of its journey at an average speed of 64 km/h. Find its average speed for the remaining 480 km if its average speed for the whole journey was 80 km/h.
2 m
Level 2
An airplane flew 9000 km from Country X to Country Y at a speed of 450 km/h. It then covered 4900 km from Country Y to Country Z at a speed of 350 km/h. Find the time taken for the whole journey.
2 m
Level 2 PSLE
A motorist travelled 23 of his journey at an average speed of 80 km/h and completed the remaining 240 km in 4 h. What was the total time taken for the whole journey?
2 m
Level 2
A motorcycle rider travelled 45 of his journey at an average speed of 20 km/h and completed the remaining 60 km in 2 hours 45 minutes. How long did he take to complete his journey?
2 m
Level 2
A lorry and a bus were travelling from town A to town B which were 720 km apart. The bus set off 2 12 h later than the lorry but arrived 1 12 h earlier. If the average speed of the lorry was 60 km/h, find the average speed of the bus.
2 m