A rectangular garden is 10 feet by 4 feet. A gravel border with uniform width along the sidfes and 90 degree corners surround the garden. The area of the gravel border is six times the area of the garden. What is the perimeter of the outside of the gravel border.

Note..there is a picture. Draw a rectangle inside of a rectangle. The space outside of the small ractangle is the gravel and the inside of the smaller rectangle is the Garden.

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