Two water tanks are being drained at constant rates. Water tank A has$220 gallons of water and is being drained at a constant rate of 5 gallons per minute.
Water tank B has 180 gallons of water and is being drained at a constant rate of 3 gallons per minute.

How much time, in minutes, do water tank A and water tank B have to be drained in order for them to have the same amount of water? Show all the steps you took to find your answer.

Which water tank, A or B, will be completely drained first? How much less time, in minutes, will it take this water tank to completely drain than the other water tank?