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Nitin kotnala

· started a discussion

· 1 Months ago

same questions in mock 1 (Question: 246453.0 )

same in mock 1

Question:
Three taps A, B and C can fill a tank in 12, 15 and 20 hours respectively. If A is open all the time and B and C are open for one hour each alternatively. The tank will be full in –
Options:
A) 6 hours
B) \(6\cfrac{1}{2}\) hours 
C) 7 hours 
D) \(7\cfrac{1}{2}\) hours 
Solution:

Ans: (c)


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