In an examination 77% candidates passed in English and 87% candidates passed in Mathematics. If 69% candidates passed in both these subjects, then what percent of candidates failed in both the subjects?
বিকল্পসমূহ (নিজের উত্তর যাচাই করতে ক্লিক করুন):
সঠিক উত্তর
3 (5%)
বিস্তারিত ব্যাখ্যা ও বিশ্লেষণ:
Solution:
Given that,
Students passed in English = 77%
Students passed in Math's = 87%
Students passed in both subjects = 69%
Then, number of students passed in at least one subject
= (77 + 87) - 69
= 95%
Thus, students failed in both subjects = 100 - 95 = 5%
