A water tank can hold 1200 liters of water. If 3/4 of the tank is already filled, how many more liters can be added?
Correct: B
First, calculate how much water is already in the tank: 3/4 * 1200 liters = 900 liters. Then subtract this amount from the tank's capacity to find out how much more water can be added: 1200 liters - 900 liters = 300 liters.