In a school, the distribution of teachers is as follows:
|
Age (years) |
20-25 |
25-30 |
30-35 |
35-40 |
40-45 |
45-50 |
50-55 |
|
No. of Teachers |
2 |
3 |
5 |
2 |
6 |
7 |
5 |
The total number of teachers of age less than 40 years is:
Show answer & explanation
Correct answer: D
Explanation
The correct answer is Option 4 i.e. 12.
| Understanding/Application |
| All teachers whose age is less than 40 are in the group of 20 - 25, 25 - 30, 30 - 35, 35 - 40. |
| All teachers whose age is less than 40 = 2 + 3 + 5 + 2 = 12 |