SOLUTION: A pharmacist has 30% solution of a certain drug and a 12% solution of the same drug. How much of each solution should she mix, in order to make 6 liters of a 24% solution of the dr
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Question 269591: A pharmacist has 30% solution of a certain drug and a 12% solution of the same drug. How much of each solution should she mix, in order to make 6 liters of a 24% solution of the drug? Answer by checkley77(12844) (Show Source):
You can put this solution on YOUR website! .30X+.12(6-X)=.24*6
.30X+.72-.12X=1.44
.18X=1.44-.72
.18X=.72
X=.72/.18
X=4 LITERS OF THE 30% SOLUTION IS USED.
PROOF:
.30*4+.12(6-4)=1.44
1.2+.12*2=1.44
1.2+.24=1.44
1.44=1.44
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