Question

Chalk contains 10% calcium, 3% carbon, 12% oxygen and the remaining is sand.
Calculate the amount of calcium, carbon, oxygen and sand in 4 Kgs of chalk. Express all
the answers in grams.

Answer 1

Answer:

1 kg. 1000 gram

1. calcium (10%) =( 10/100)*1000

=100gram

2. carbon (3%) ,

=(3/100) *1000

=30gram

3. oxygen (12%,

) =(12/100)*1000

120 gram