Alexis found that a bushel of apples contain 78 large apples she separated the Apple into three groups such that second group has twice as many as the first and if that group has six more than the first how many apples are in each group​

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?