SOLUTION: How much sand must be added to 250 kg of a cement mixture that is 22% sand to have a mixture that is 25% sand?

SOLUTION: How much sand must be added to 250 kg of a cement mixture that is 22% sand to have a mixture that is 25% sand?

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Question 509429: How much sand must be added to 250 kg of a cement mixture that is 22% sand to have a mixture that is 25% sand?
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
Let = kg of cement to be added
given:
kg of sand initially
----------

10 kg of sand must be added
check:

OK
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