For this chain-of-thought reasoning and answer, what was the question?
Mr. Williams bought 10 x 10 = 100 cups of juice. Since 5 cups were left, then 100 - 5 = 95 cups were drunk.
 A: 95
Q: Mr. Williams bought 10 gallons of juice for a party. Each gallon has 10 cups. At the party, 5 cups of juice were left. How many cups of juice were drunk?