Question

How much salt is in a mixture containing 10 gallons of an 11% salt solution and 6 gallons of a 7% salt solution

Answer 1

so the the answer would be calculated in this way: 10*11/100 + 6*7/100 = 110/100 + 42/100 = 1.1 + 0.42 = 1.52

Answer: 1.52 gallons