After 4,000 gallons of water were added to a large water tank that was already filled to 3/4 of its capacity, the tank was then at 4/5 of its capacity. how many gallons of water does the tank hold when filled to capacity? (a) 5,000(b) 6,200(c) 20,000(d) 40,000(e) 80,000

 The correct option is

(E) 80,000.

Step-by-step explanation:  Given that after adding 4,000 gallons of water to a large tank that was already filled to of its capacity, the tank was then at of its capacity.

We are to find the number of gallons of water that the tank hold when filled to capacity.

Let the tank can hold x gallons of water when filled to capacity.

Then, according to the given information, we have

Thus, the required capacity of the tank is 80,000 gallons of water.

Option (E) is CORRECT.

good luck on your studies! : )

david edward.