Unsolved paper set 2

Given is a set of three figures, X, Y and Z, showing the folding sequence of a piece of paper. Fig Z shows the manner in which the folded paper has been cut. Study these figures carefully and select the option that would most closely resemble this piece of paper when unfolded.

The length of a paper is (3)/(2) times its breadth. If the perimeter of the paper is 80 cm, then find the length and the breadth of the paper.

A rectangular sheet of paper is of length 1.2m and width 21cm. Find the ratio of width of the paper to its length.