alleryA, B ਅਤੇ C ਇਕੱਠੇ 4 ਦਿਨਾਂ ਵਿੱਚ ਖਤਮ ਹੁੰਦੇ ਹਨ; A ਅਤੇ B ਨੂੰ ਇਕੱਠੇ 6 ਦਿਨਾਂ ਦੀ ਲੋੜ ਹੁੰਦੀ ਹੈ। ਸਿਰਫ਼ C ਨੂੰ ਹੀ ਲੋੜ ਹੁੰਦੀ ਹੈ।
A8 ਦਿਨ
B12 ਦਿਨ
C10 ਦਿਨ
D24 ਦਿਨ
Answer & Solution
Correct answer: B. 12 ਦਿਨ
C ਦੀ ਦਰ 1/4 - 1/6 = 2/24 = 1/12 ਪ੍ਰਤੀ ਦਿਨ ਹੈ, ਇਸ ਲਈ 12 ਦਿਨ।
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