alleryએક પુસ્તકાલયમાં 90 સભ્યો છે. 55 કાલ્પનિક સાહિત્ય ઉછીનું લે છે, 48 વિજ્ઞાન ઉછીનું લે છે અને 13 બેમાંથી એકપણ ઉછીનું લેતા નથી. બંને પ્રકારના પુસ્તકો ઉછીના લેનારા કેટલા સભ્યો છે?
A22
B30
C26
D34
Answer & Solution
Correct answer: C. 26
77 સભ્યો ઓછામાં ઓછો એક પ્રકાર ઉછીનો લે છે, તેથી અતિવ્યાપ્તિ (બંને) 55 + 48 - 77 = 26 છે.
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