# Thirty students bought pennants for the football game. Plain pennants cost $4 each and fancy ones cost $8 each. If the total bill was $168, how many students bought the fancy pennants?

##### 1 Answer

12 students.

#### Explanation:

Since the cost for the pennants' LCD is

Footnote 1: That is so because if a student had bought a fancy pennant, he would have been counted twice in the number of plain pennants because fancy pennants cost two times more. By subtracting the actual number of students from that number, we can see how many students have been double counted, and that would be the number of fancy pennants bought.