The gauge on a water tank shows that the tank is 1/3 full of water. In order to fill the tank, 16 gallons of water are added. How many gallons of water does the tank hold when full?
Explanation
If the tank is 1/3 full, it is 2/3 empty. Let x = the capacity of the tank; 2/3x = 16, so x = 16 ÷ 2/3 = 16 × 3/2= 24.