Question
Download Solution PDFStudy the following table and answer the question below.
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 |
36 |
5 ∶ 7 |
C |
1000 |
24 |
5 ∶ 19 |
D |
800 |
18 |
3 ∶ 9 |
Find the ratio of the number of female students who opted biology in school B and school D.
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFCalculation:
Number of female students who opted biology in school B = 400 × 36% × 7/(7 + 5) = 84
Number of female students who opted biology in school D = 800 × 18% × 9/(3 + 9) = 108
Now, the ratio = 84 : 108 = 7 : 9
∴ The ratio of the number of female students who opted for biology in school B and school D is 7 : 9.
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