In a certain farm, there are 12 roosters and 5 pigs. The land on which they walk is rough and hot, which calls for sneakers. Each pair of sneakers cost $3. The number of pairs of sneakers that must be ordered for these animals is
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Solution
5 pigs will require 10 pairs of sneakers.
12 roosters will require 12 pairs of sneakers.
So, a total number of 10+12=22 pairs of sneakers must be ordered.