Question

chalk contains calcium,carbon and sand in the ratio of 12:3:10. find the percentage of carbon in the chalk

Answer 1

12:3:10
Sum of ratio= 25
Carbon ratio =3
(3/25)x100=12%

Answer 2

Hloo dear....

ratio of sand carbon n water is 12:3:10

sum of all ratios = 12+3+10 =25

percentage =3/25 x 100
=13°/•