Given : Total candidates appeared in an examination = 50030 candidates failed in English only75 failed in Hindi only50 failed in mathematics only and 15 failed in both English and Hindi17 failed in both Hindi and Mathematics 17 failed in both Mathematics and English 5 failed in all three testsConcept used :Venn diagram conceptCalculations :Candidates failed in at least 2 subjects = candidates failed in 2 subjects + candidates failed in 3 subjectsCandidates failed in only English and mathematics = 12Candidates failed in only English and Hindi = 10Candidates failed in only Hindi and mathematics = 12Candidates failed in Hindi, English, and mathematics = 5Candidates failed in at least 2 subjects = 12 + 10 + 12 + 5 = 39Percentage of candidates who failed in at least two subjects? (candidates failed in at least 2 subjects/total candidates) × 100? (39/500) × 100 = 39/5? 7.8 %? The percentage of candidates who failed in at least two subjects is 7.8%.