Pipe A fills a water tank in 24 minutes. Pipe B fills the same tank 7 – McqOptions

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1.	Pipe A fills a water tank in 24 minutes. Pipe B fills the same tank 7 times as fast as pipe A, If both the pipes are kept open, in how many minutes will the empty tank be filled ?
A.	2
B.	2.5
C.	3
D.	3.5
Answer» D. 3.5

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