Posted by Miki on Saturday, May 31, 2014 at 2:01pm.
Rectangular cake pans X and Y are
similar. The ratio of the width of
pan X to the width of pan Y is 3 : 4.
The length of pan X is 10 inches, and
its width is 5 inches. What is the
perimeter of pan Y ?

Math  Steve, Saturday, May 31, 2014 at 5:19pm
X is 5 by 10
Y:x = 4/3, so
Y is 20/3 by 40/3
and its perimeter is thus 40
or
X is 5 by 10,
so its perimeter is 30
Y:X = 4:3, so its perimeter is 40