alleryपाईप्स एक टाकी 12 आणि 18 मिनिटांत भरतात. दोन्ही 6 मिनिटे चालू ठेवले जातात. टाकीचा भरलेला भाग आहे:
A5/6
B1/2
C3/4
D2/3
Answer & Solution
Correct answer: A. 5/6
एकत्रित दर 1/12 + 1/18 = 5/36 आहे, आणि 6 मिनिटांत 30/36 = 5/6 भाग भरतो.
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