Gunpowder contains 75% of nitre and 10% of sulphur and the rest of it is charcoal find the amount of charcoal in 8 kg of gunpowder

Gun - powder contains 75% nitre, 10% sulphur and the rest of it is charcoal. Find the quantity of charcoal in 8 kg of gun-powder.

Find 75% of 12

Gunpowder contains 75% nitre and 10% sulphur. Find the amount of the gunpowder which carries 9 kg nitre. What amount of gunpowder would contain 2.3 kg sulphur?

Gunpowder contains 75% nitre and 10% sulphur. Find the amount of the gunpowder which carries 9 kg nitre. What amount of gunpowder would contain 2.3 kg sulphur?

Gunpowder contains 75% nitre and 10% sulphur. Find the amount of gunpowder which carries 9 kg nitre. What amount of gunpowder would contain 2.5 kg sulphur?

Find: 75% of 1kg

Find: 75% of 1 kg

chalk contains 3% of carbon 10% of calcium and 12% of oxigen find the amount in grams of each of these substances in 1 kg of chalk