CAT Quantitative Ability Questions | CAT TIme, Speed, Distance and Work questions
CAT/2002
Question . 99
3 small pumps and a large pump are filling a tank. Each of the three small pumps works at 2/3rd the rate of the large pump. If all 4 pumps work at the same time, they should fill the tank in what fraction of the time that it would have taken the large pump alone?
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