VeritasPrepKarishma wrote:
gmacforjyoab wrote:
A newer machine, working alone at its constant rate, can fill a production order in half the time required by two older machines working together at their constant rates. If the three machines are used together, will they require more than 1 hour to fill a production order?
(1) Each of the older machines, working alone at its constant rate, can fill half a production order in less than 4 hours.
(2) If the newer machine were to double its rate, it could
order working alone in(1) Each of the older machines, working alone at its constant rate, can fill half a production order in less than 4 hours.
(2) If the newer machine were to double its rate, it could
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