Becky and her friend Eliana are knitting scarves for the homeless. Becky had already completed 12 scarves and has committed to making 1 more scarf per day. Eliana, who hasn't completed any scarves yet, has more free time and can make 4 scarves per day. At some point, Eliana will catch up and they will both have completed the same number of scarves. How many scarves will each woman have finished? How long will that take?
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