How much pure sand must be added to $12.5 \mathrm{~kg}$ of cement mixture containing $23.0 \%$ sand to raise the sand content to $28.0 \%$ ?

Name: How much pure sand must be added to $12.5 \mathrm{~kg}$ of cement mixture containing $23.0 \%$ sand to raise the sand content to $28.0 \%$ ?
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The Answer of How much pure sand must be added to $12.5 \mathrm{~kg}$ of cement mixture containing $23.0 \%$ sand to raise the sand content to $28.0 \%$ ?

How Much Pure Sand Must Be Added To 12.5 kg12.5 \mathrm{~kg}12.5 kg Of Cement Mixture Containing

How Much Pure Sand Must Be Added To $12.5 \mathrm{~kg}$ Of Cement Mixture Containing