Question

Chalk contains 10% calcium , 3% carbon, 12% oxygen and remaining sand . Find the amount of carbon and calcium(in grams ) in 2½ kg of chalk . Also find amount of sand (in kg).​

Answer 1

Answer:

the above picture shows the advert fit your question

Answer 2

Step-by-step explanation:

calcium=

$\frac{10}{100} \times 2500$

=250g

carbon=

$\frac{3}{100} \times 2500$

=125g

oxygen=

$\frac{12}{100} \times 2500$

=600g

sand=calcium+carbon+oxygen

=250+125+600-2500

=2500-975

=1525g