Problema Solution
A chemist needs 130 milliliters of a 57% solution but has only 33% and
85% solutions available. Find how many milliliters of each that should
be mixed to get the desired solution.
Answer provided by our tutors
33%: x
85%: y
So
x+y=130
33%x+85%y=130*57%
So
x=70
y=60
So he needs 70 ml 33% solution and 60 ml 85% solution