Chalk contains calcium carbon and oxygen in the ratio

Asked by admin @ in Math viewed by 311 People

Chalk contains calcium carbon and oxygen in the ratio 10:3:12

find the percentage of carbon and if carbon is 3gm so what is the weight of chalk stick.

Answered by admin @


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




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