Question

How much of a 35% solution should be mixed with 7 gallons of a 60% solution to create a 50% solution?

Answer 1

5 gallons of 50 % alcohol solution is used

Solution:

Let "x" is the gallons of 50 % alcohol solution

Then, 10 gallons is 35 % solution

The, 10 + x is the gallons of 40 % solution

Then, according to question,

"x" gallons of 50 % solution is mixed with 10 gallons of 35 % solution to get 10 + x gallons of 40 % solution

Therefore,

Thus 5 gallons of 50 % alcohol solution is used

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