Ten pipes of the same type can fill up a tank in 16 minutes. If two pipes go out of order, how long will the remaining pipes take to fill the tank?

Ten pipes of the same type can fill up a tank in 16 minutes. If two pi

1.	Ten pipes of the same type can fill up a tank in 16 minutes. If two pipes go out of order, how long will the remaining pipes take to fill the tank?
A.	18 mins
B.	20 mins
C.	22 mins
D.	24 mins
Answer» C. 22 mins

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Ten pipes of the same type can fill up a tank in 16 minutes. If two pipes go out of order, how long will the remaining pipes take to fill the tank?

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