Question: In a certain school, 20% of students are below 8 years of age. The number of students above 8 years of age is of the number of students of 8 years of age which is 48. What is the total number of students in the school?
[A].72
80
120
150
[A].
[B].
[C].
[D].
Answer: Option E
Explanation:
Let the number of students be x. Then,
Number of students above 8 years of age = (100 – 20)% of x = 80% of x.
| 80% of x = 48 + | 2 | of 48 |
| 3 |
| 80 | x = 80 | |
| 100 |
x = 100.
Video Explanation: https://youtu.be/yPfocU6DA2M