alleryA ਅਤੇ B ਦੀ ਕੁਸ਼ਲਤਾ 4:5 ਦੇ ਅਨੁਪਾਤ ਵਿੱਚ ਹੈ ਅਤੇ ਉਹਨਾਂ ਨੂੰ ਇਕੱਠੇ 20 ਦਿਨਾਂ ਦੀ ਲੋੜ ਹੁੰਦੀ ਹੈ। ਸਿਰਫ਼ A ਨੂੰ ਹੀ ਲੋੜ ਹੁੰਦੀ ਹੈ
A40 ਦਿਨ
B36 ਦਿਨ
C50 ਦਿਨ
D45 ਦਿਨ
Answer & Solution
Correct answer: D. 45 ਦਿਨ
ਕੁੱਲ ਕੰਮ 9 ਯੂਨਿਟ x 20 ਦਿਨ = 180 ਯੂਨਿਟ ਹੈ, ਅਤੇ A 4 ਯੂਨਿਟ ਇੱਕ ਦਿਨ ਕਰਦਾ ਹੈ, ਇਸ ਲਈ 45 ਦਿਨ।
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