alleryएक पंप एक टाकी 5 तासांत भरतो, पण गळतीमुळे 6 तास लागतात. ती गळती एकटी टाकी किती वेळात रिकामी करेल?
A30 तास
B11 तास
C25 तास
D20 तास
Answer & Solution
Correct answer: A. 30 तास
गळतीचा दर प्रति तास 1/5 - 1/6 = 1/30 आहे, म्हणून रिकामी होण्यासाठी 30 तास लागतील.
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