Question

chalk contains calcium carbon and oxygen in the ratio 10 ratio 3 ratio 12 find the percentage of calcium in Chalk​

Answer 1

Answer:

Explanation:

calcium : carbon : oxygen

10 : 3. : 12

x. : 3 mg. : y

carbon = 3 mg

1 = 1 mg

10 + 12 +3 = weight of chalk

10 mg + 12 mg + 3 mg

25 mg. is it answer

Answer 2

Explanation:

total amount - x

let calcium- 10x

let carbon - 3x

let oxygen - 12 x

total weight - 25 x

percantage of calcium - [10x/25x * 100] %

% of calcium- 40%