21 students, or 60% of the class, passed the final exam. How many students are in the class?

21 students, or 60% of the class, passed the final exam. How many students are in the class?

Detailed Explanation

Let x = the number of people in the class.

60% of x = 21, so 0.60x = 21.

x = 35.

60% of x = 21, so 0.60x = 21.

x = 35.