A pharmacist has 18% bleach solution. How much of this solution and how much water must be mixed together to make 10 liters of a 12% solution?

Question

Mathematics

Averie

11 June, 01:19

A pharmacist has 18% bleach solution. How much of this solution and how much water must be mixed together to make 10 liters of a 12% solution?

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Answers (1)

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Mathias Black · Answer 1

X = the amount of water to add

10 - x = amount of 18% bleach to add

.18 (10-x) =.12 x 10

1.8 -.18x = 1.2

-.18x = -.6

x = 3 1/3 liters water

therefore 6 2/3 liters bleach