Two taps can fill a tank in 4 hours and 5 hours .If two taps are operate simultaneously, In how much timewill the tank be filled ?

Two taps can fill a tank in 4 hours and 5 hours .If two taps are opera

1.	Two taps can fill a tank in 4 hours and 5 hours .If two taps are operate simultaneously, In how much timewill the tank be filled ?
A.	4hrs 18min
B.	10min 12min
C.	2hrs 13min
D.	12hrs 10min
Answer» D. 12hrs 10min

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Two taps can fill a tank in 4 hours and 5 hours .If two taps are operate simultaneously, In how much timewill the tank be filled ?

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