In my school, the number of students has increased by 20% this year. The number of students this year is 960. How many students were there last year?
Use reasoning to answer the following question.
800
Let X be the number of students last year.

The number of students this year is X + X * 20% = 960.

Combining like terms, we get X * 1.

2 = 960.

Dividing both sides by 1.

2, we get X = 800 students.

.

Final answer: 800