allery50 ਮੈਂਬਰਾਂ ਦੇ ਕਲੱਬ ਵਿੱਚ 28 ਸ਼ਤਰੰਜ ਅਤੇ 24 ਕੈਰਮ ਖੇਡਦੇ ਹਨ। 8 ਇਨ੍ਹਾਂ ਦੋ ਖੇਡਾਂ ਵਿੱਚੋਂ ਕੋਈ ਵੀ ਨਹੀਂ ਖੇਡਦੇ। ਦੋਵੇਂ ਖੇਡਾਂ ਖੇਡਣ ਵਾਲੇ ਕਿੰਨੇ ਹਨ?
A10
B12
C14
D16
Answer & Solution
Correct answer: A. 10
ਯੂਨੀਅਨ = 50 - 8 = 42। ਦੋਵੇਂ ਖੇਡਣਾ = n(ਸ਼ਤਰੰਜ) + n(ਕੈਰਮ) - ਯੂਨੀਅਨ = 28 + 24 - 42 = 10।
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