alleryਇੱਕ ਮਿਸਤਰੀ 6 ਦਿਨਾਂ ਵਿੱਚ ਕੰਧ ਬਣਾਉਂਦਾ ਹੈ, ਦੂਜਾ 3 ਦਿਨਾਂ ਵਿੱਚ। ਇਕੱਠੇ ਕੰਮ ਕਰਨ ਨਾਲ, ਕੰਧ ਤਿਆਰ ਹੋ ਜਾਂਦੀ ਹੈ
A1.5 ਦਿਨ
B2 ਦਿਨ
C1 ਦਿਨ
D3 ਦਿਨ
Answer & Solution
Correct answer: B. 2 ਦਿਨ
ਦਰਾਂ ਪ੍ਰਤੀ ਦਿਨ ਕੰਧ ਦੇ 1/6 + 1/3 = 1/2 ਵਿੱਚ ਜੋੜਦੀਆਂ ਹਨ, ਇਸ ਲਈ ਕੰਧ ਨੂੰ 2 ਦਿਨ ਲੱਗਦੇ ਹਨ।
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