allery70 ਲੋਕਾਂ ਦੇ ਇੱਕ ਸਮੂਹ ਵਿੱਚ, 40 ਚਾਹ ਪੀਂਦੇ ਹਨ, 35 ਕੌਫੀ ਪੀਂਦੇ ਹਨ, ਅਤੇ 15 ਕੋਈ ਵੀ ਨਹੀਂ ਪੀਂਦੇ। ਕਿੰਨੇ ਲੋਕ ਦੋਵੇਂ ਪੀਂਦੇ ਹਨ?
A10
B15
C20
D25
Answer & Solution
Correct answer: C. 20
ਯੂਨੀਅਨ = 70 - 15 = 55। ਦੋਵੇਂ ਪੀਓ = 40 + 35 - 55 = 20।
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