Level 3
A box containing 3 similar mugs weighs 1.2 kg. The same box and 2 of the mugs weigh 980 g. Find the mass of the empty box.
4 m
Level 3
The total mass of Pierre and Rael is 46.6 kg. The total mass of Rael and Mark is 59 kg. If the total mass of Pierre and Mark is 56 kg, find the mass of Mark.
4 m
Level 3
The number of ten-cent coins in a jar was 13 the number of fifty-cent coins. Zane took out 19 fifty-cent coins and exchanged them for ten-cent coins. Then he put the money back into the jar. The number of fifty-cent coins became 58 the number of ten-cent coins. How much money was there in the jar?
5 m
Level 3
A box of mangosteens weighs 6680 g. When it is 59 full, its mass is 3880g. What is the mass of the box when it is empty?
4 m
Level 3
The total capacity of a bottle and a mug is 8 ℓ. The total capacity of 3 such bottles and 5 such mugs is 31 ℓ. What is the capacity of each mug? Express your answer in ℓ
4 m