Question
Download Solution PDFStudy the following table and answer the question below.
| School name | Total number of students enrolled | Percentage of enrolled students who opted for Biology | Ratio of male to female students who opted for Biology |
| A | 900 | 30% | 7 ∶ 8 |
| B | 400 | 38% | 9 ∶ 10 |
| C | 1000 | 24% | 5 ∶ 19 |
| D | 800 | 18% | 5 ∶ 7 |
What is the ratio of the total number of male students to that of female students who opted for Biology in schools A and D together?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFCalculation:
Number of male students who opted biology in school A = (900 × 30% × 7)/15 = 126
Number of male students who opted biology in school D = (800 × 18% × 5)/12 = 60
Number of female students who opted biology in school A = (900 × 30% × 8)/15 = 144
Number of female students who opted biology in school D = (800 × 18% × 7)/12 = 84
Male students who opted for biology in schools A and D : Female students who opted for biology in schools A and D
⇒ (126 + 60) : (144 + 84)
⇒ 186 : 228 = 31 : 38
∴ The correct answer is 31 : 38.
Last updated on Jul 15, 2025
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