Mo2men wrote:
GMATGuruNY wrote:
Number of days = (total amount of feed)/(number of chickens).
We can PLUG IN THE ANSWERS, which represent the actual number of chickens.
When the correct answer is pluggedin:
20 fewer chickens versus 20 additional chickens will yield the following time ratio:
(10 more days)/(2 fewer days) = 10/2.
Let the total amount of feed = the LCM of 30, 10 and 50 =150 pounds.
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