alleryA ਇੱਕ ਕੰਮ 15 ਦਿਨਾਂ ਵਿੱਚ ਅਤੇ B 10 ਦਿਨਾਂ ਵਿੱਚ ਕਰ ਸਕਦਾ ਹੈ। A 5 ਦਿਨਾਂ ਲਈ ਇਕੱਲਾ ਕੰਮ ਕਰਦਾ ਹੈ, ਫਿਰ B ਜੁੜਦਾ ਹੈ। B A ਨਾਲ ਕੰਮ ਕਰਦਾ ਹੈ
A4 ਦਿਨ
B6 ਦਿਨ
C3 ਦਿਨ
D5 ਦਿਨ
Answer & Solution
Correct answer: A. 4 ਦਿਨ
A ਸਿਰਫ਼ 5/15 = 1/3 ਕਰਦਾ ਹੈ; ਬਾਕੀ 2/3 1/6 ਪ੍ਰਤੀ ਦਿਨ 'ਤੇ 4 ਦਿਨ ਲੈਂਦਾ ਹੈ।
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