alleryतीन स्वतंत्र गटांमध्ये अनुक्रमे 20, 15 आणि 10 सदस्य आहेत, ज्यांच्यामध्ये कोणताही सदस्य सामाईक नाही. तिन्ही गटांमधील एकूण सदस्यसंख्या किती?
A30
B40
C35
D45
Answer & Solution
Correct answer: D. 45
कोणताही सामाईक भाग नसल्यामुळे, संयोग संच ही साधी बेरीज आहे: 20 + 15 + 10 = 45.
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