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How Many Kilograms of Cement Containing 24.0%24.0 \% Sand Must Be Added To

Question 24

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How many kilograms of cement containing 24.0%24.0 \% sand must be added to 45.0 kg45.0 \mathrm{~kg} of cement containing 19.0%19.0 \% sand to obtain cement that is 22.6%22.6 \% sand?

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