alleryਇੱਕ ਪੰਪ ਇੱਕ ਟੈਂਕ ਨੂੰ 5 ਘੰਟਿਆਂ ਵਿੱਚ ਭਰਦਾ ਹੈ, ਪਰ ਇੱਕ ਲੀਕ ਹੋਣ 'ਤੇ 6 ਘੰਟੇ ਲੱਗ ਜਾਂਦੇ ਹਨ। ਸਿਰਫ਼ ਲੀਕ ਹੀ ਇਸਨੂੰ ਖਾਲੀ ਕਰ ਦੇਵੇਗਾ
A30 ਘੰਟੇ
B11 ਘੰਟੇ
C25 ਘੰਟੇ
D20 ਘੰਟੇ
Answer & Solution
Correct answer: A. 30 ਘੰਟੇ
ਲੀਕ ਦਰ 1/5 - 1/6 = 1/30 ਪ੍ਰਤੀ ਘੰਟਾ ਹੈ, ਇਸ ਲਈ 30 ਖਾਲੀ ਕਰਨ ਲਈ ਘੰਟੇ।
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