Question:

PSLE

Arnold walked from his home to the library, which is 1.2 km away, at an average speed of 80 m/min. How many minutes did Arnold take to walk from his home to the library?

1 m
Arnold walked from his home to the library, which is 1.2 km away, at an average speed of 80 m/min. How many minutes did Arnold take to walk from his home to the library?

A car left City A at 11.30 p.m. It reached City B 550 km away at 9.30 a.m. the next morning. What was its speed?

2 m
A train left for City Z at 07 00. The train stopped over at City S for half an hour before continuing its journey to City Z. It reached City Z at 13 45. If the average speed of the train was 350 km/h, what was the total distance covered by the train?

2 m
A train of length 100 m passes a bridge that is 5.5 km long. It is travelling at an average speed of 80 km/h. How long does it take the train to completely pass through the bridge? Express the answer as decimals in h.

2 m
A subway train travelled 900 km from Station A to Station B at an average speed of 150 km/h. It then moved on to Station C which is 500 km away at an average speed of 120 km/h. Find the time taken for the whole journey. Express the answer as a mixed fraction in h.

2 m
A train travelled 900 km from City A to City B at an average speed of 150 km/h. It then travelled 500 km to City C at an average speed of 120 km/h. Find the time taken for the whole journey. Express the answer in h and min.

2 m
A race car travelled ^{2}_{5} 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
An air plane 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
Sam took 2 hours to walk from Building A to Building B which was 6 km away. On his way back from Building B to Building A, he increased his average walking speed by 1 km/h. How long did he take for his journey back?

2 m
A lorry and a bus were travelling from town A to town B which were 720 km apart. The bus set off 2 ^{1}_{2} h later than the lorry but arrived 1 ^{1}_{2} h earlier. If the average speed of the lorry was 60 km/h, find the average speed of the bus.

2 m