alleryਤਿੰਨ ਵੱਖ-ਵੱਖ ਸਮੂਹਾਂ ਵਿੱਚ 20, 15 ਅਤੇ 10 ਮੈਂਬਰ ਹਨ ਜਿਨ੍ਹਾਂ ਵਿੱਚ ਕੋਈ ਸਾਂਝਾ ਮੈਂਬਰ ਨਹੀਂ ਹੈ। ਤਿੰਨਾਂ ਵਿੱਚ ਕੁੱਲ ਕੀ ਹੈ?
A30
B40
C35
D45
Answer & Solution
Correct answer: D. 45
ਬਿਨਾਂ ਕਿਸੇ ਓਵਰਲੈਪ ਦੇ, ਯੂਨੀਅਨ ਇੱਕ ਸਾਦਾ ਜੋੜ ਹੈ: 20 + 15 + 10 = 45।
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