Study the given pie chart and answer the question that follows.
Break-up (degree-wise) of the number of students in five schools (A, B, C, D and E) in a city.
Total number of students = 5200
If the ratio of the number of boys to that of girls in school B is 7 : 6 and the ratio of the number of boys to that of girls in school D is 4 : 5, then what is the ratio of the number of boys in B to that of girls in D?
Show answer & explanation
Correct answer: A
Explanation
The correct answer is option 1 i.e. 14 : 13
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Understanding |
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Extract the data from the pie chart. |
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Application |
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Number of students in school B = 5200 × 72/360 = 1040 And Number of students in school D = 5200 × 64.8/360 = 936 |
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Ratio of the number of boys to that of girls in school B is 7 : 6 and the ratio of the number of boys to that of girls in school D is 4 : 5. Hence, Number of boys in school B = 1040 × 7/13 = 560 Number of girls in school D = 936 × 5/9 = 520 |
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Hence, Required ratio = 560 : 520 = 14 : 13 |