Mass - math word problems - page 64 of 79
Number of problems found: 1571
- Flax oil
25% oil is obtained from one flaxseed. From how many kg of flax seeds is 1.5 kg of oil obtained? - Alcohol mixing
How much 55% alcohol do we need to add to 2 liters of 80% alcohol to produce 60% alcohol? How much is 60% of alcohol made? - Concentration - salt solution We added 300 g of water to 400 g of salt solution, reducing the solution's concentration by 5%. How much water did the original solution contain, and what was its concentration?
- The cast
The cast in the body of a regular quadrilateral pyramid with a base edge 60 cm long and 5 cm high is made of a material with a density of 7.8 g/cm cubic. Calculate its weight. - Apples 2
Dried apples contain 15% water. Fresh apples contain 80% water. How many kilograms of apples must we buy to get 3 kg of dried apples? - Tower model
The tower's height is 300 meters, and its weight is 8000 tons. How high is the model of the tower's weight of 1 kg? (State the result in centimeters). The model is made from exactly the same material as the original no numbers need to be rounded. A result - Percentage conversion
When 17.2 kg is 94.9332%, how much kg is 66%? - Mushrooms
Fresh mushrooms contain 90% water, dried only 12%. How many kilograms of fresh mushrooms are needed for 5 kg dried? - Coffee blend
From two types of coffee priced at 450 CZK/kg and 730 CZK/kg, 20 kg of a blend priced at 520 CZK/kg is to be prepared. How many kilograms of each type of coffee are needed? - Grams
How many grams of 5% solution do we need to add to 100 g of 50% solution to get a 20% solution? - Coal mined
The monthly plan exceeded 17,000 tons of coal at the mine by 12.5%. How many tons of coal did they mine? - Collecting day
On collecting day at school, pupils of three classes took 1063 kg of paper. Class B collected half more than A-Class and class C 55 kg more than B. How many kilograms of paper were collected in each class? - Coal consumption
The locomotive consumes 22 kg of coal when climbing per kilometer. It consumes 10 kg when descending or driving on a flat surface per one kilometer. The line is 62 km long, and coal consumption on this line was 800 kg. How many km of the climb was there o - Container weight
The weight of the water container is 2.48 kg. If we pour 75% of the water, the container with water weighs 0.98 kg. Find the weight of the empty container. How much water was originally in the container? - Salt solution
How many grams of table salt and water do we weigh to prepare 500 g of a 15% solution? - A stone
There is a stone weighing 60 kg on the billet. The distance from the support point to the stone is 20 cm. The length of the billet is 1 m. Determine the force exerted by the hand at the end of the billet. - The bag
Nelly found an interesting point. An empty bag weighs 4 kg less than the full. An empty bag is five times easier than a full. How many kg weigh things in this bag? - Grocery weight
Mom bought 1 eighth of a kg of butter, 1 half of a kg of bread, 6 twenty-fifths of a kg of ham, and 3 tenths of a kg of cheese in the store. Express the weight of all ingredients in grams. Was the purchase heavier or lighter than 1 kg, and by how much? - Chocolate roll
The cube of a 5 cm chocolate roll weighs 30 g. How many calories will the identical chocolate roller of a prism shape with a length of 0.5 m whose cross-section is an isosceles trapezoid with bases 25 and 13 cm and legs 10 cm contain? You know that 100 g - Apples I picked 600 kg of apples this year. Autumn's apples were four times more plentiful than summer's. How many kilograms do I pick in the summer, and how many winter apples?
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