alleryગણ A, B, C માં 20, 15, 10 સભ્યો છે. A∩B માં 5, B∩C માં 3, A∩C માં 4, A∩B∩C માં 2 સભ્યો છે. |A∪B∪C| શોધો.
A35
B33
C37
D45
Answer & Solution
Correct answer: A. 35
સરવાળો 45, તેમાંથી જોડીઓના ઓવરલેપ 12 બાદ કરતાં 33 મળે, પછી ત્રિપુટીનો ઓવરલેપ 2 ઉમેરતાં 35 મળે છે.
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