chalk contains calcium,carbon and sand in the ratio 12:3:10 find the %age of carbon in the chalk.
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shriya3196:
thanks for solving nd its very helpful for me thanks a lot
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let each part of the ratio be x.
12x+3x+10x=100
=>25x=100
=> x=4.
therefore part of carbon present in the chalk is 3*4=12.
therefore percentage of carbon is 12%
12x+3x+10x=100
=>25x=100
=> x=4.
therefore part of carbon present in the chalk is 3*4=12.
therefore percentage of carbon is 12%
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