Problema Solution

How many milliliters of a 2.5% bleach solution must be mixed with a 10% bleach solution to produce 600mL of a 5% bleach solution?

Answer provided by our tutors

let


x = ml of the 2.5% bleach solution

y = ml of the 10% bleach solution


we need to produce 600 ml of 5%


x + y = 600


0.025x + 0.10y = 0.05*600


by solving the above system of equations we find


x = 400 ml


y = 200 ml


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400 ml of 2.5% bleach solution must be mixed with 200 ml of 10% bleach solution.