Let U be the universal set of all students in the hostel. A be the students who drinklea. B he the students who drink coffee, n(U) = 125, n(A) = 80. n(B) = 60, n(An B)n(AUB) = n (A) + n(B) = n(A n B).= 80 + 60 - On (AUB) = [ ] - 20n (AUB) = [ ]

Let U be the universal set of all students in the hostel. A be the stu

1.	Let U be the universal set of all students in the hostel. A be the students who drinklea. B he the students who drink coffee, n(U) = 125, n(A) = 80. n(B) = 60, n(An B)n(AUB) = n (A) + n(B) = n(A n B).= 80 + 60 - On (AUB) = [ ] - 20n (AUB) = [ ]
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Let U be the universal set of all students in the hostel. A be the students who drinklea. B he the students who drink coffee, n(U) = 125, n(A) = 80. n(B) = 60, n(An B)n(AUB) = n (A) + n(B) = n(A n B).= 80 + 60 - On (AUB) = [ ] - 20n (AUB) = [ ]​

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Let U be the universal set of all students in the hostel. A be the students who drinklea. B he the students who drink coffee, n(U) = 125, n(A) = 80. n(B) = 60, n(An B)n(AUB) = n (A) + n(B) = n(A n B).= 80 + 60 - On (AUB) = [ ] - 20n (AUB) = [ ]