Question

Chalk contains 15 percent calcium, 20 percent carbon and the rest are oxygen. Find the amount (in grams) of each of these compounds in 1.5 kg of chalk.​

Answer 1

Answer:

Calcium=225 g

Carbon=300 g

Oxygen=975 g

Answer 2

Answer:

300g carbon,

225g calcium,

975g oxygen

Explanation:

$\frac{15}{100} \times 1500 = 225$

$\frac{20 }{100} \times 1500 = 300$

$= 1500 - (225 + 300) \\ = 1500 - 525 \\ = 975$