Mass - examplesDo you want to convert mass units?
- Three granaries
Three granaries hold 7,800 metric cent (q) of grain. In the first, 70 tonnes of grain was more than the second and in the third it was 120 tonnes less than in the second. How many grain were in each granary?
One brick is 2 kg and half a brick heavy. What is the weight of one brick?
In human body the blood is about 7.7% body weight. How many kilograms of blood is in the human body with weight 96 kg?
193 cow consumes 13510 kg hay per day. How many kg of hay consume one cow in one day?
- Children in the classroom
How many children are in the classroom, where Ladislav is 10. lightest and 16. heaviest in class?
After three 10° beers consumed in a short time there are 7.4 g of alcohol in 5 kg adult human blood. How much is it per mille?
Grower harvested 190 kg of apples. Pears harvested 10 times less. a) How many kg pears harvested? b) How many apples and pears harvested? c) How many kg harvested pears less than apples?
- Drunk man
Drunkman has 2.1‰ of alcohol in the blood. How many grams of alcohol has in blood, if he have 6 kg of blood?
- Density - simple example
Material of density of 1278 kg/m3 occupies a container volume of 80 cm3. What is its mass?
- Vinegar 2
How many percentage of getvinegar solution, if we mix to 14.5 liters of 7.8% and 2.5 liters of 5.8% vinegar?
18 m railway weighs 1260 kg. How much weighs 100 m of welded railways?
The lorry was loaded with 27 boxes of 24 kg. How many boxes with weight 36 kg can be loaded, if total load must be same?
- Air mass
What is the weight of the air in a classroom with dimensions 5 m × 2 m × 3.1 m ? The air density is 1.293 kg/m3.
Potatoes contain 78.4% starch. How many potatoes need to obtain 93.7 kg of starch?
Could 388 tons of potatoes (ρ = 799 kg/m³) fits in a warehouse with a volume of 675 m³ ?
Brick weight before drying is 6 kg. After drying, the bricks is 0.6 kg lighter and after firing is 0.6 kg lighter than after drying. What is the weight of the brick after drying and firing?
- Barrel of oil
Barrel of oil weighs 282 kg. When it mold 56% oil, weighed 138 kg. What is the mass of the empty barrel?
Gross weight of shipment is 5073 kg and its tare is 6.9%. Calculate the net weight of the shipment.
- Drunk and alcohol
One drunk measured 2.7 ‰ alcohol in the blood, another 1.75 ‰. How many grams of alcohol in the blood they had if they has 6 kg of blood?
- Metallurgical enterprise
Metallurgical company daily produces 873 tons of cast iron. How many tons of coke it burns to melt cast iron when 17 tons of cast consumes 13 tons of coke?