Quantitative Aptitude
Work and Time
Pipe A fill a tank in 10 hours while pipe B fill it in 12 hours another pipe Q empty it in 20 hours. If all the pipe are opened together then the tank will be filled in
A  7hour 
B  8 hour 
C  10 hour 
D  9 
E  None of these

B →12 hours → 5 units
C→20 hours → 3 units
If work is 60 unit, so in 1 hour they fill ( 6+ 5 3) = 8 unit
So they fill full tank in hour
Work and Time Flashcard List
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