Two pipes X and Y can fill an empty tank in ‘t’ minutes. If pipe X – McqOptions

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1.	Two pipes X and Y can fill an empty tank in ‘t’ minutes. If pipe X alone takes 6 minutes more than ‘t’ to fill the tank and Y alone takes 54 minutes more than ‘t’to fill the tank, then X and Y together will fill the tank in:
A.	18min
B.	12min
C.	27 min
D.	24min
Answer» B. 12min

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