2022 · Q98
Consider the following for the next four (04) items that follow: In a group of 500 candidates, 30 failed in English only, 75 failed in Hindi only, 50 failed in Mathematics only, 15 failed in both English and Hindi (inclusive), 17 failed in both English and Mathematics (inclusive), 17 failed in both Hindi and Mathematics (inclusive), and 5 failed in all three subjects. What is the percentage of candidates who failed in only one subject?
Elementary MathematicsSet Theory
- A28%
- B31%
- C35.8%
- D38.8%
Explanation
Failed in exactly one subject: 30 (English only) + 75 (Hindi only) + 50 (Mathematics only) = 155 candidates. As a share of the 500 candidates this is 155/500 = 31%. Hence option (b).