There was a fish tank for sale at the City Auction. At the beginning of the auction it had 10 gallons of water in it, Thirty minutes later, 1 cup of water had leaked out . How much water was left in the tank?

9 gallons, 15 cups

Step-by-step explanation:

Note that 1 gallon = 16 cups

Since at the beginning of the auction, the tank had 10 gallons of water in it, and thirty minutes later, 1 cup of water had leaked out .

The amount of water that was left in the tank will be:

= 10 gallons - 1 cup

= 9 gallons, 15 cups