Question:

Level 2

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 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.

Level 2

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 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.

Level 2

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
A race car travelled

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
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.

Level 2 PSLE

A motorist travelled^{2}_{3} 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
A motorist travelled

Level 2

A motorcycle rider travelled^{4}_{5} 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
A motorcycle rider travelled

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^{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
A lorry and a bus were travelling from town A to town B which were 720 km apart. The bus set off 2

Level 2

Kim ran 30 minutes at the speed of 10 km/h. She then continued at the speed of 8 km/h for 45 minutes. How far did she run?

2 m
Kim ran 30 minutes at the speed of 10 km/h. She then continued at the speed of 8 km/h for 45 minutes. How far did she run?

Level 2

Ana and Tom started driving from the same place towards Cypress Tower at average speeds of 56 km/h and 80 km/h respectively. After some time, they were 80 km apart. How long had they been travelling? Give your answer in mixed number.

2 m
Ana and Tom started driving from the same place towards Cypress Tower at average speeds of 56 km/h and 80 km/h respectively. After some time, they were 80 km apart. How long had they been travelling? Give your answer in mixed number.

Level 2

Tania and Christian started off together from the park at the same time and drove towards the office at speeds of 87 km/h and 81 km/h respectively. How far apart would they be after 1 hour 20 minutes?

2 m
Tania and Christian started off together from the park at the same time and drove towards the office at speeds of 87 km/h and 81 km/h respectively. How far apart would they be after 1 hour 20 minutes?

Level 2

Martin and Ervin started together from the same bus-stop and ran along a track at the speed of 11 km/h and 7 km/h respectively. How far apart would they be in 15 minutes? Express the answer in km.

2 m
Martin and Ervin started together from the same bus-stop and ran along a track at the speed of 11 km/h and 7 km/h respectively. How far apart would they be in 15 minutes? Express the answer in km.

Level 3 PSLE

When Lance started cycling from his home, Kenneth was 120 m ahead. Lance's cycling speed was 5 m/s and Kenneth's jogging speed was 2 m/s. They went in the same direction and did not change their speeds throughout. What distance would Lance have cycled when he caught up with Kenneth?

2 m
When Lance started cycling from his home, Kenneth was 120 m ahead. Lance's cycling speed was 5 m/s and Kenneth's jogging speed was 2 m/s. They went in the same direction and did not change their speeds throughout. What distance would Lance have cycled when he caught up with Kenneth?

Level 3

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?

3 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?

Level 3

Jake walks to school at an average speed of 4 km/h every day. One day, after walking a distance of 1 km, he realised that his watch was slow. So, he ran at a constant speed and managed to reach his school just on time. Later, he calculated that if he had run at this speed right from the start of the journey, he would have reached his school 5 minutes earlier. What was his running speed?

3 m
Jake walks to school at an average speed of 4 km/h every day. One day, after walking a distance of 1 km, he realised that his watch was slow. So, he ran at a constant speed and managed to reach his school just on time. Later, he calculated that if he had run at this speed right from the start of the journey, he would have reached his school 5 minutes earlier. What was his running speed?

Level 3 PSLE

Peter and Justin ran in a race around a 400 m track. Peter ran at a speed of 190 m/min and Justin at a speed that was 25 m/min slower than Peter throughout the race. How many complete rounds would Peter have finished when he had run a distance of 300 m more than Justin?

3 m
Peter and Justin ran in a race around a 400 m track. Peter ran at a speed of 190 m/min and Justin at a speed that was 25 m/min slower than Peter throughout the race. How many complete rounds would Peter have finished when he had run a distance of 300 m more than Justin?

Level 3

Ryan drove at an average speed of 70 km/h for the first 2 hours of the journey. He then increased his average speed by 15 km/h and drove for another 3 hours until he reached his town. Find his average speed for the whole journey.

3 m
Ryan drove at an average speed of 70 km/h for the first 2 hours of the journey. He then increased his average speed by 15 km/h and drove for another 3 hours until he reached his town. Find his average speed for the whole journey.

Level 3

Jesse left home at 6.15 a.m. and drove towards the mountain which was 802 km away. For the first 210 km, she was travelling at 70 km/h. Then she increased her speed by 4 km/h and completed the remaining journey.

3 m
Jesse left home at 6.15 a.m. and drove towards the mountain which was 802 km away. For the first 210 km, she was travelling at 70 km/h. Then she increased her speed by 4 km/h and completed the remaining journey.

- How long did she take for her whole journey?
- At what time did she reach the mountain?

Level 3

Jimmy drove at an average speed of 72 km/h for 4 hours. He then reduced his average speed by 18 km/h and continued for another 5 hours before he reached his destination. Find his average speed for the whole journey.

3 m
Jimmy drove at an average speed of 72 km/h for 4 hours. He then reduced his average speed by 18 km/h and continued for another 5 hours before he reached his destination. Find his average speed for the whole journey.

Level 3

Ben drove a car at an average speed of 84 km/h for 45 minutes. He then reduced his average speed by 6 km/h and drove another 30 min before he reached his destination. Find the total distance covered by Ben.

3 m
Ben drove a car at an average speed of 84 km/h for 45 minutes. He then reduced his average speed by 6 km/h and drove another 30 min before he reached his destination. Find the total distance covered by Ben.

Level 3

A coach driver drove the first 4 h of a journey at an average speed 64 km/h. Driving at an average speed of 90 km/h, he then took another 5 h to complete his remaining journey. Find his average speed for the whole journey. Give the answer in mixed number.

3 m
A coach driver drove the first 4 h of a journey at an average speed 64 km/h. Driving at an average speed of 90 km/h, he then took another 5 h to complete his remaining journey. Find his average speed for the whole journey. Give the answer in mixed number.