Mass - practice for 14 year olds
Number of problems found: 425
- Percentage 37941
What percentage is 119 t of 85 t? - Silvia
Silvia is 20% lighter than Katy. What percentage is Katy heavier? - Bracelet
The silver bracelet weighs 62g and contains 59g of silver. What is the purity of the bracelet? - Percentage 74844
The bar contains 12 grams of sugar per 50 grams. What percentage of sugar does the bar have? - Percentage 3892
The bar contains 81g of coconut per 200g. What percentage of coconut does the bar have? - The gold coin
The gold coin contains 900 per mille of pure gold. The coin weighs 950g. How much per mille is gold? How many grams are gold? - Kilograms 23581
How many kilograms is 24% of 30 tons? - Potatoes 10581
Potatoes contain 76.1% starch. How much starch does 250g of potatoes contain? - Bucket 7714
A full bucket of water weighs 10kg. Half weighs 5.5 kg. How much does a bucket weigh? - The cube
The cube and cylinder weigh the same as three 20-gram weights. Three cubes and one cylinder weigh the same as two cylinders and one cube. How many grams does one cube weigh (and one cylinder)? - Butter fat
A quarter of a kg of butter contains 82% fat. How many grams of fat are in four cubes of butter? - Watering can
A watering can full of water weighs 11 kg. The weight of water is 10 kg greater than the weight of an empty watering can. How much is the weight of the watering can? - Gold coin
The gold coin contains 962 permille pure gold, which is 7.5 g. What is the weight of the coin in grams? - The silver
The silver ring weighs 10 grams. The ring contains 850 per mille of pure silver. Calculate the amount of pure silver in grams. - Centre of mass
The vertices of triangle ABC are from the line p distances 3 cm, 4 cm, and 8 cm. Calculate the distance from the center of gravity of the triangle to line p. - Calculate 55793
Calculate the material amount of a water sample weighing 1 kg. M (H 2 O) = 18 g / mol. - Weighs 4877
A + B weighs 75 kg, B + C weighs 83 kg, C + D weighs 92 kg. How much does A + D weigh? - A store 2
A store sells 12 oz of Brand A for $1.20 and 16 oz of Brand B for $1.50. Which is the more economical buy? - Bottle, cup and jug
The bottle and the cup have the same weight as the jug. The bottle has the same weight as the cup and plate. Two jugs have the same weight as three plates. What is the weight of the bottle if the weight of the cup is 100g? - Six hens
Six hens weigh 3 kg more than three geese and 7 kg less than five geese. How much does a hen weigh, and how many geese?
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