Final answer:
To find the percent of water left in Container A, subtract the amount of water taken from the initial amount and calculate the percentage of the remaining water. In this case, 75% of the water is left in Container A.
Step-by-step explanation:
To find the percent of water left in Container A, we need to calculate the percentage of the remaining water out of the initial amount.
First, we subtract the amount of water taken from the container (36L) from the initial amount (144L) to find the amount of water left (108L).
Next, we use the formula:
Percentage = (Amount of water left / Initial amount of water) x 100
Plugging in the values, we get:
Percentage = (108L / 144L) x 100 = 75%
Therefore, 75% of the water is left in Container A.