Question

On a particular day, 15% students were absent in the class. If number of students who were present in the class on that day was 51, then find the total number of students in the class.
1. 60
2. 65
3. 75
4. 70

Answer 1

Correct Answer - Option 1 : 60

Given:

% of students who were absent in the class = 15%

Number of present students = 51

Formula used:

The formula of percentage.

X% of Y = XY/100

Calculation:

Let total number of students = x

Number of absent students = 15x/100

⇒ 3x/20

So, number of present students = x - 3x/20

⇒ 17x/20

17x/20 = 51

⇒ x = 60

∴ The total number of students is 60