posted by Anonymous .
An advertisement for LED HDTVs lists the following prices for their different sizes (all have the same aspect ratio 9:16):
22-inch $ 247.99
42-inch $ 1,299.99
46-inch $ 1,449.99
52-inch $ 1,799.99
55-inch $ 1,999.0
Rearrange this list in terms of the price per viewable image area ( $/in2 )
The inch measure is the diagonal distance across the screen. Since the ratios are all the same, you do not need to use in^2 = inches squared.
Just divide price by inches and arrange in order of value.