If 1 13 cups of salt can dissolve in 1 gallon of water how much salt will dissolve in 3 12 gallons?

To find out how much salt will dissolve in 3 1/2 gallons of water, you can first convert 3 1/2 gallons to an improper fraction, which is 7/2 gallons. Since 1 gallon can dissolve 1 1/3 cups of salt (or 4/3 cups), you can multiply this by 7/2:

(4/3 cups) * (7/2) = 28/6 = 14/3 cups.

Thus, 14/3 cups, or approximately 4 2/3 cups of salt, will dissolve in 3 1/2 gallons of water.