Problema Solution
A pharmacist mixed some 10%-saline solution with some 15%-saline solution to obtain 100 mL of a 12%-saline solution. How much of the 10%-saline solution did the pharmacist use in the mixture?
Answer provided by our tutors
10%-saline solution: x
So
10%*x + 15%(100-x)=12%*100
So
x = 60
So 10%-saline solution is 60 ml