Problema Solution
How many gallons of a 60% antifreeze solution must me mixed with 60 gallons of 25% antifreeze to get a mixture that is 50% antifreeze?
Answer provided by our tutors
Let
x = gal of 60% antifreeze solution
0.60x + 0.25*60 = 0.50(x + 60)
........
........
x = 150 gal
150 gallons of a 60% antifreeze solution must be mixed.