Study the given table and answer the question that follows.
Find the difference between the number of female students and male students who opted biology in school C.
| School Name | Total number of students enrolled | Percentage of enrolled students, opted Biology |
Ratio of male to female students who opted biology |
| A | 900 | 30 | 7:8 |
| B | 400 | 38 | 9:10 |
| C | 1000 | 24 | 1:2 |
| D | 800 | 18 | 5:7 |
Show answer & explanation
Correct answer: D
Explanation
The correct answer is Option 4 i.e. 80.
Calculations:
Total number of students in school C = 1000
Number of sudents who opted for biology = 24% of 1000 = 240
Let the number of male and female students who opted for biology be x and 2x
Number of
Hence, required difference = [240/(2x + x)] × (2x - x)
⇒ [240/3x] × x
⇒ 80