Study the following table and answer the question that follows. A school has four sections A, B, C and D of Class IX students. The results of Science and Mathematics examinations are shown in the following table.
| RESULT |
No. of students | |||
| Section A | Section B | Section C | Section D | |
| Failed in both | 24 | 25 | 18 | 20 |
| Failed in Science but passed in Mathematics | 14 | 12 | 10 | 15 |
| Passed in Science but failed in Mathematics | 7 | 6 | 8 | 10 |
| Passed in both | 63 | 60 | 56 | 55 |
What is the ratio of number of students who failed in Science but passed in Mathematics of section B and section D together to the number of students of section A that passed in both subjects ?
Answer & explanation
Correct answer: option 2
Number of students who failed in Science but passed in Mathematics of section B and section D= 12 + 15 = 27
Number of students of section A that passed in both subjects = 63
required ratio = 27 : 63
= 3 : 7