The first 2 rectangles of a sequence of rectangles are
shown below. The 1st rectangle is 4 inches long and
1 inch wide. The dimensions of the 2nd rectangle, and
of each successive rectangle after the 2nd, are
determined by continuing the following pattern: the
length is 3 inches longer than the length of the
previous rectangle, and the width is I inch longer than
the width of the previous rectangle. What is the
perimeter, in inches, of the 6th rectangle in the
sequence?
7
4
2
1st rectangle
2nd rectangle
A. 24
B. 40
C. 50
D. 56
E. 60