Level 2
A basket which contains 8 similar packets of sugar and 6 similar packets of salt has a mass of 6 kg 960 g. The basket alone is 480 g. Each packet of sugar has a mass of 540 g. Find the mass of each packet of salt in kg.
Level 3
Linda and Melody's total mass is 51 kg. Melody and Nicole's total mass is 81 kg. Nicole is three times as heavy as Linda. What is the average mass of the three friends?
Level 3
Mrs Anis measured and recorded the mass of Amanda, Bee Ling, Charles and Dai Ling. The average mass of these 4 children was 49 kg. The next day, Mrs Anis realized that she had recorded Amanda's mass wrongly. Amanda's recorded mass was 8 kg more than her actual mass. What was the correct average mass of the 4 children?
Level 3
The average mass of a group of girls is 45 kg. If one more girl who weighs 75 kg joins the group, the new average mass of the group will become 48 kg. Find the total number of girls in the group.
Level 3
Mr Lim had three bags of soil, A, B and C and the mass of each bag of soil was in the ratio 2 : 4 : 3. Mr Lim decided to transfer 30% of soil from Bag A into Bag B and 60% of soil from Bag C into Bag B. Given that the mass of Bag B was 38.4 kg in the end, how many kilograms of soil were transferred into Bag B?
Level 3
Mrs Tang bought the following fruits from a stall. She bought 4 apples, 5 kg of grapes and 4 kg of rambutans. She paid a total of $21.50 for them. Find the cost of 100 g of rambutans in cents.
Level 3
Mrs Tang bought the following fruits from a stall. She bought 4 apples, 5 kg of grapes and 4 kg of rambutans. She paid a total of $21.50 for them. Find the cost of 100 g of rambutans in cents.
Level 3
The prices of two fruits sold at a supermarket is shown.
Grapes: 2 kg for $12
Bananas: 3 kg for $10
Mr Lin bought an equal mass of grapes and bananas and spent $64 more on grapes than on bananas. What was the total mass of fruits that Mr Lin bought?
Mrs Shay spent an equal amount of money on grapes and bananas. In terms of their masses, what was the ratio of grapes to the ratio of bananas Mrs Shay bought?
Level
Box A and Box B are identical. 78 of Box A and 35 of Box B are filled with sand. The mass of Box B with its contents is 79 the mass of Box A with its contents. The total mass of the two boxes with their contents is 528 kg. Find the mass of an empty box.
Level 3
A box containing 60 folders had a mass of 5.01 kg. A box containing 25 post-it-pads has a mass of 6.21 kg. The mass of each post-it-pad was thrice that of each folder. Find the mass of the empty box in grams.
