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In a class of 50 students, each student passed Maths or English. If 10 students passed both Maths and English, and 30 students passed Maths, the find the number of students who passed English.

In a class of 50 students ,each student passed Maths of English ,If 10 students passed Maths ,then find the number of students who passed English

Determine the missing value in the puzzle below :

Find the average number of students who opted for Maths, Sociology and Sanskrit together ?

In a class of 35 students, 18 students opt Maths, 12 students opt Maths but not Science. Find the number of students who opt both subjects. Also find the number of students two opt Science but not Maths. It is given that each student opt atleast one subject.