Question

Suppose 60% of the graduating class in a certain high school goes to college. If 240 students from this graduating class are going to college, how many students are in the class?

Answer 1

400 students

Explanation:

We can rewrite the problem using the words is and of:

240 is 60% of the total number of students in the graduating class.

A simple formula for percentage problems is Px = y, where P is the percentage.

In this case, we only know that 240 is 60% of some number, so we must find x:

`0.60x=240\\x=400`