Exams › IBPS PO › Quantitative Aptitude

68% passed Math, 62% passed Stats, 40% passed both. 30 failed both. Total candidates?

Correct answer: 300

Solution

By inclusion-exclusion: pass at least one = 68+62−40=90%. Fail both = 100−90=10% of total = 30. Total=30/0.10=300.

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