Among 120 freshman at a college, 40 of them take mathematics, 50 of them take English, and 15 of them take both mathematics and English. Find the number of the freshman who: (a) Did not take mathematics?
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NO. OF STUDENTS ARE FRESHMENS = 120
NO.OF TAKE MATHEMATICS = 40
NO.OF TAKE ENGLISH = 50
NO.OF TAKE BOTH MATHS AND ENGLISH = 15
THEREFORE NO.OF SUDENTS DIDN'T TAKE = 120 - ( 40+50+15)
= 120- 105
= 15 STUDENTS
NO. OF STUDENTS DIDN'T TAKE MATHS = 15
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