In an examination 52 candidates failed in English and 42 failed in Mathematics If 17 failed in both ...........

Quantitative Aptitude (CDS) Simplification

In an examination, 52% candidates failed in English and 42% failed in Mathematics. If 17% failed in both the subjects, then what percent passed in both the subjects?

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Explanation:

Ven Diagram

No of students failed in English only = 52 – 17 = 35
No of students failed in maths only = 42 – 17 = 25
Total no of failed students in either of the subjects = 35+17+25 = 77
No of passed student in both subjects = 100 – 77 = 23