Mr Tokai is very particular in how he makes his coffee. He is completely inflexible in that he can only take 1 teaspoon of coffee with 2 teaspoons of sugar. Any more coffee or sugar given to him is discarded in his quest for the perfect coffee. Suppose you give him 9 teaspoons of coffee and 2 teaspoons of sugar. How many cups of coffee can he create from this?
Since each cup requires 1 teaspoon of coffee and 2 teaspoons of sugar, with 9 teaspoons of coffee and 2 teaspoons of sugar, Mr. Tokai can only make 1 cup of coffee. Hence, the correct answer is (a).