X paid Rs. 47 for certain cups of tea and coffee. If tea costs Rs. 5 per cup
X paid Rs. 47 for certain cups of tea and coffee. If tea costs Rs. 5 per cup and coffee costs Rs. 8 per cup, which one of the following statements is correct?
- He drank 8 cups of tea and coffee.
- He drank the same number of cups of tea and coffee.
- He drank more tea than coffee.
- He drank more coffee than tea.
Answer
Let X drank t cups of tea and c cups of coffee.
5t + 8c = 47, where t and c have to natural numbers.
Only way this is possible is when t = 3.
5(3) + 8c = 47
8c = 47 - 15 = 32
c = 4
He drank 3 cups of tea and 4 cups of coffee.
The correct option is D.