Question

In a competitive exam 50 students passed in English. 60 students passed in Mathematics.

40 students passed in both the subjects. None of them fail in both the subjects. Find the

number of students who passed at least in one of the subjects ?


please give detail answer

Answer 1

50 students passed in English

60 students passed in Mathematics

40 students passed in both subjects

None of them fail in both the subjects

number of students passed at least in one of the subjects = (number of students passed in English) + (number of students passed in Mathematics) - (number of students passed in both subjects)

number of students passed in at least in one of the subjects = 50 + 60 - 40 = 110 - 40 = 70