SOLUTION: How many liters each of 35% and 60% alcohol solutions must be mixed together to make 40 liters of a 53% alcohol solution?

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Question 817377: How many liters each of 35% and 60% alcohol solutions must be mixed together to make 40 liters of a 53% alcohol solution?
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
 

Hi,

How many liters each of 35% and 60% alcohol solutions must be mixed together 

to make 40 liters of a 53% alcohol solution?

60x+%2B+35%2840L-x%29+=+53%2A40L   |After multiplying thru by 100

        25x = 18*40L

          x = 28.8L of the 60%  and 11.2L of the 35%