Problem Solving

The price of a model \(M\) camera is $209 and the price of a special lens is $69. When the camera and lens are purchased together, the price is $239. The amount saved by purchasing the camera and lens together is approximately what percent of the total price of the camera and lens when purchased separately?

(A) 14%
(B) 16%
(C) 29%
(D) 33%
(E) 86%

[spoiler]OA=A[/spoiler]

Source: Official Guide

Cost of Camera = $$209$$
Cost of Lens = $$69$$
Sum of Costs = $$209\ +\ 69\ =\ 278$$
Retail price = $$239$$
Money Saved = $$278\ -\ 239\ =\ 39$$

Therefore, money saved as percent of total amount = $$\frac{39}{278}\cdot100=\ \sim14\%$$