Question

If the teacher has 30 students and 10% left,how much students does she have now

Answer 1

Explanation:

Teacher has 30 students

10%decrease

So,decrease=10/100*30=3

So, decrease is 3 students

Hence remaining number of students = 30-3=27 students

Answer 2

She has 27 students now.

Explanation:

Given :

The teacher has 30 students

10% students left.

To find : how much students does she have now?

Solution :

Since we are given that teacher has 30 students .

And 10% of students left

⇒ 10% of 30

⇒
`(10)/(100) *30`

⇒
`(300)/(100)`

⇒
`3`

Thus, 3 students left .

She had 30 students . three students left.

So, now she have 30 - 3 = 27 students .

Hence she has 27 students now.