exam Maths Puzzle Numerical Ability

A sheet of paper is 11 inches long. When it is folded in half on the dotted line, as shown, the ratio of length to width remains unchanged. What was the width of the original sheet of paper?

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exam Other Question

The measure of a supplement of an angle is four more than three times the angle. How much is the angle and the supplement?

I got: 44 degrees, 136 degrees

Not sure if this is correct.
Thanks~ Write the equation of a line, in slope-intercept form, passing through (2,3) and perpendicular to a line with an equation x-2y=2