Asked by Darshita

A mixture of acid and water of 25 litres contain 20% acid. What quantity of water should be added to make the level of acid to 10%?

Answers

Answered by Reiny
let the amount of water to be added be x L

looking at the amount of acid we have:

.20(25) + 0(x) = .10(25 + x)

solve for x
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