Level 3
Olivia is 20% heavier than Xavier. Dana is 40% lighter than Xavier. Olivia is 12 kg heavier than Dana. What is Xavier's mass?
3 m
Level 3
A laundromat hired a delivery service to move its machines to a new location. The mass of all its inventory 37800 kg.

The laundromat hired the delivery service from 5 p.m. to 7.20 p.m. Find the total amount that was paid for the delivery service.
3 m
Level 2
After using 17 of her sugar, Mrs Lim bought another 75 kg of sugar. As a result, Mrs Lim now has 97 as much sugar as what she had at first. How many kilograms of sugar did Mrs Lim have at first?
3 m
Level 3
There were some packets and bottles. A packet weighed 3 kg and a bottle weighed 2 kg more. The total weight of the packets was 35 kg heavier than the total weight of the bottles. The number of packets and bottles were in the ratio 5 : 2. What was the total weight of the packets and the bottles?
4 m
Level 2
A parcel has a mass of 12 kg and a box weighs 13 kg. How much heavier is the parcel compared to the box?
3 m
Level 2
If 200 g of salmon cost $6, how much will 2 kg of salmon cost?
2 m
Level 2
Jen bought two bags of mangoes. One bag weighed 34 kg and the other weighed 1112 kg. What was the total mass of the two bags of mangoes?
3 m
Level 3
The line graph shows the length of a spring when various masses are hung on it.
  1. What is the length of the spring when a 40 g mass is hung on it?
  2. What is the mass hung on the spring when its length is 26cm?
  3. What is the length of the spring when it is not stretched?
  4. How many centimetres is the spring stretched after a mass of 50 g is hung on it?
4 m
Level 2
The average mass of 2 grapefruits and 5 jackfruits is 2.4 kg. The average mass of each jackfruit is 2 kg. The difference in mass between the 2 grapefruits is 90 g. Find the mass of the heavier grapefruit. (Give your answer in kg and g.)
3 m
Level 2
Mother bought 334 kg of mangosteens and 235 kg of grapes. How many kilograms of fruit did she buy altogether?
3 m
Level 2
The average weight of 5 students is 42 kg. When the weights of Fred and Cody are included, the average weight becomes 46 kg. Cody is 6 kg lighter than Fred. What is Fred's weight?
3 m
Level 2
An empty box has a mass of 23 kg. When it is filled with some toys, it has a mass of 3 kg. What is the mass of the toys in mixed number?
3 m
Level 2
A box containing some apples has a mass of 38 kg. Given that the mass of the apples is 14 kg, what is the mass of the box?
3 m
Level 2
A bag of sweets weighs 35 kg. What is the total mass of 2 such bags of sweets? Give your answer in mixed number.
3 m
Level 2
Mrs Mia bought 35 kg of sugar. She used some sugar to mix in an icing and had 13 kg of sugar left. How much sugar did Mrs Mia use to mix in an icing?
3 m
Level 3
The average mass of a group of 12 children is 33 kg and the average mass of another group of 18 children is 36 kg. What is the average mass of the two groups of children?
3 m
Level 2
Mrs Tan bought 4 kg of grapes. She kept 2 kg of the grapes for her sons, ate 14 kg and gave the rest to her neighbours. How many kilograms of grapes did she give to her neighbours?
3 m
Level 3
Mrs Ellie bought 25 kg of flour. She used some flour to bake muffins and had 13 of the flour left. How much flour did Mrs Ellie use to bake the muffins?
3 m
Level 2
Amanda bought 15 kg of powdered milk. After she had used 0.65 kg of the powdered milk to make some candy, she put the remaining powdered milk equally into 5 jars. What was the mass of powdered milk in each jar?
3 m
Level 2
The total mass of 2 puppies is 911 kg. One of them has a mass of 311 kg. What is the mass of the other puppy?
3 m