A water tank can hold 3000 liters of water. If 1200 liters of water are already in the tank, what percentage of the tank is filled?
Correct: A
To find the percentage of the tank that is filled, we divide the amount of water in the tank (1200 liters) by the total capacity of the tank (3000 liters) and multiply by 100: (1200/3000)*100 = 40%.