Question

Q4 In a class of 40 students, 3/4 passed in Maths while 2/5 passed in English. Find the number of
students who have passed in each subject.​

Answer 1

Step-by-step explanation:

Total Number of student = 40

No of students who passed in maths = 3/4×40

= 30 students

no of students who passed in english = 2/5×40=16 students

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Answer 2

Step-by-step explanation:

~Total = 40

~Students who passed in Maths = 3/4 of 40 = 30

~Students who passed in English = 2/5 of 40 = 16

~Let A be the students who passed in maths and B be the students who passed in english

~n(A∪B) = n(A) + n(B) - n(A∩B)

~40 = 30 + 16 - n(A∩B)

~n(A∩B) = 46 - 40 = 6

~So 6 students passed in both Maths and English...