alleryA ਨੂੰ 6 ਦਿਨ ਇਕੱਲੇ B ਨਾਲੋਂ ਘੱਟ ਲੱਗਦੇ ਹਨ, ਅਤੇ ਉਹ ਇਕੱਠੇ 4 ਦਿਨਾਂ ਵਿੱਚ ਖਤਮ ਹੁੰਦੇ ਹਨ। B ਇਕੱਲੇ ਲੈਂਦਾ ਹੈ।
A8 ਦਿਨ
B9 ਦਿਨ
C12 ਦਿਨ
D10 ਦਿਨ
Answer & Solution
Correct answer: C. 12 ਦਿਨ
A = x ਅਤੇ B = x + 6 ਦੇ ਨਾਲ, 1/x + 1/(x+6) = 1/4 x = 6 ਦਿੰਦਾ ਹੈ, ਇਸ ਲਈ B 12 ਦਿਨ ਲੈਂਦਾ ਹੈ।
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