Riley takes 2 walks every day, one in the morning and one in the evening, and walks for a total of 5%4 hours in a 7-day week. Hf he walks for 15 minutes each morning, how many minutes does he walk for each evening?
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The length of a rectangular board is 3 feet less than twice its width. a second rectangular board is such that each of its dimensions is the reciprocal of the corresponding dimensions of the first rectangular board. if the perimeter of the second board is one-fifth the perimeter of the first, what is the perimeter of the first rectangular board?