allery50 सदस्यों वाले एक क्लब में, 28 शतरंज खेलते हैं, 24 कैरम खेलते हैं, और 8 इनमें से कोई भी खेल नहीं खेलते हैं। कितने सदस्य दोनों खेल खेलते हैं?
A10
B12
C14
D16
Answer & Solution
Correct answer: A. 10
सम्मिलन (Union) = 50 - 8 = 42. दोनों खेल खेलने वाले = n(शतरंज) + n(कैरम) - Union = 28 + 24 - 42 = 10.
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