allery60 વ્યક્તિઓના એક જૂથમાં, 35 ને ચા ગમે છે, 30 ને કોફી ગમે છે અને 10 ને બેમાંથી એકપણ ગમતું નથી. બંને પીણાં કેટલાને ગમે છે?
A25
B10
C15
D20
Answer & Solution
Correct answer: C. 15
50 વ્યક્તિઓને ઓછામાં ઓછું એક પીણું ગમે છે, તેથી બંને = 35 + 30 - 50 = 15.
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