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rahul kumar

· started a discussion

· 1 Months ago

wrng answer (Question: 195708.0 )

answr shuld b 9

Question:
Two pipes, A and B can fill a tank in 16 and 20 minutes respectively. If both are opened   together and at the end of 4 minutes, pipe A is closed, how long will the pipe B take to fill the remaining part of the tank?
Options:
A) 11 minutes 
B) 13 minutes
C) 16 minutes
D) 9 minutes 
Solution:
Ans: (a)


Knowledge Expert

· commented

· 1 Months ago

Dear Student,

Please read the explanation carefully. given answer is correct.

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