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Maths Puzzle
Numerical Ability
Percentage
Two taps A & B can fill a cistern in 12 and 16 minutes respectively. Both fill taps are opened together, but 4 minutes before cistern is full, one tap A is closed. How much time will the cistern take to fill?
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- b alone can fiil in 4 days=4days
so1-1/4=3/4
a and b =1/12+1/16=7/48
48/7*3/4=36/7
(36/7+4)
64/7 - 8 years agoHelpfull: Yes(0) No(0)
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