A chalk contains calcium, carbon and sand in the ratio 11:4:20. Find the percentage of carbon in the Chalk?
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Answered by
0
Answer:
it will be 25%
Step-by-step explanation:
100 as total percentage
100÷4
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Answered by
1
11.428
Step-by-step explanation:
calcium 11
carbon 4
sand 20
11+4+20=35
4/35×100
=11.428
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