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.
Level 3
Cheryl bought 114 kg of potatoes on Monday. She cooked 25 kg of potatoes each day on Tuesday, Wednesday and Thursday. What is the mass of the potatoes left on Friday?
Level 3
When an ice box is packed with 25 identical bottles of soda, it has a mass of 18.4 kg. When the ice box is packed with 30 identical packets of milo, it has a mass of 7.5 kg. A bottle of soda weighs 470 g more than a packet of milo. What is the mass of the empty ice box in kg?
Level 3
Lynn had 10 kg of flour. She used 12 of the flour to bake a cake and 14 kg of the remaining flour to bake some muffins. How much flour did she have left? Give your answer in grams.
Level 3
Mrs Decruz baked 8 muffins more than cakes. Each muffin needed 0.06 kg of flour while each cake needed 0.5 kg of flour. She used a total of 1.6 kg of flour. How many muffins did Mrs Decruz bake?
