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
The graph shows the mass of a cup when empty and when different combinations of objects A, Band C are placed in the cup.
  1. What is the mass of the empty cup?
  2. What is the average mass of the objects A, Band C?
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
Level 2
Gary weighs x kg while Jim weighs 20 kg.
  1. Find the average mass of each boy in terms of x .
  2. If x = 30, find the average mass of each boy.
2 m
Level 2
Vicky and Sue started driving from the same building but in opposite directions along a straight road. After driving for 2 hours, they were 260 km apart. Vicky's average speed was 60 km/h. What was Sue's average speed?
2 m
Level 2
Tom has a mass of 8r kg. John is 4 kg heavier than Tom. The mass of May is twice the total mass of the Tom and John.
  1. Find the total mass of the 3 children in terms of r.
  2. If r = 2, find the average mass of the 3 children.
2 m
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
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
Level 1 PSLE
The table shows the times taken by four boys to complete a race.
  1. Who was the second in the race? Give your answer in number. (Eg 1)
  2. What was the average time taken by the 4 boys to complete the race?
2 m
Level 2 PSLE
Elsa and Ana started jogging from the same place in opposite directions along a straight path. They jogged for 40 minutes. At the end of the jog, they were 7 km apart. Elsa's average speed was 6 km/h. What was Ana's average speed in km/h?
2 m
Level 2 PSLE
The graph shows the number of television sets sold from March to June. The number of television sets sold in June is equal to the average number of television sets sold from March to May. Find the number of television sets sold in June.
2 m
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
Level 2 PSLE
The bar graph shows the number of visitors to a zoo from Monday to Friday last week.
  1. What was the average number of visitors from Monday to Friday last week?
  2. The average number of visitors on Saturday and Sunday was 14 more than the average number of visitors from Monday to Friday. If the number of visitors on Sunday was 250, how many visitors were there on Sunday?
2 m
Level 2 PSLE
Mr Chen bought some goldfish at $10 each. He also bought an equal number of swordfish at a different price. The average price of the goldfish and the swordfish was $8. Mr Chen paid $36 more for the goldfish than the swordfish he bought. How many goldfish did he buy?
2 m
Level 2 PSLE
The average mass of 3 boys, Abel, Benny, Charlie, is 44 kg. Abel is heavier than Benny by 6 kg. The total mass of Abel and Benny is the same as the mass of Charlie. What is the mass of Abel?
2 m
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 cycling 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
Level 2
The average height of some children is 160 cm. There is an equal number of boys and girls. The average height of the boys is 170 cm. Find the average height of the girls. Give your answer in cm.
2 m