There are 500 students in a school 220 like science subject 180 like maths and 40 like both maths and science. find te number of students who like either math or science
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n(S)=220
n(M)=180
n(both Science and Maths)=40
n(SUM) = 220+180-40 = 360
n(M)=180
n(both Science and Maths)=40
n(SUM) = 220+180-40 = 360
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