In an examination 80% passed in English, 85% in Maths, 75% in both and 40 students failed in both subjects. Then the number of students appeared are :

Question

Aicharya · Accepted Answer

Solution: n(E) = 80 n(M) = 85 n(E n M) = 75 n(E ? M) = n(E) + n(M) - n(E n M) = 80 + 85 - 75 = 90 n(E?M)' = 10 Let n be the total number of students appeared ? n = 400

In an examination 80% passed in English, 85% in Maths, 75% in both and 40 students failed in both subjects.…

Solution