allery100 ਲੋਕਾਂ ਵਿੱਚੋਂ, 70 ਚਾਹ ਪੀਂਦੇ ਹਨ, 45 ਕੌਫੀ ਪੀਂਦੇ ਹਨ ਅਤੇ ਸਾਰੇ ਘੱਟੋ-ਘੱਟ ਇੱਕ ਪੀਂਦੇ ਹਨ। ਕਿੰਨੇ ਲੋਕ ਦੋਵੇਂ ਪੀਂਦੇ ਹਨ?
A25
B10
C20
D15
Answer & Solution
Correct answer: D. 15
ਦੋਵੇਂ = 70 + 45 - 100 = 15, ਕਿਉਂਕਿ ਹਰ ਕੋਈ 100 ਦੇ ਮੇਲ ਵਿੱਚ ਹੈ।
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