The price of a computer fell 15% this year.If the computer now costs $680, how much did it cost last year?
A) $760
B) $820
C) $800
D) $780
E) $790

Question

Quizplus · Accepted Answer

Let X be the original price of the computer last year.
After the 15% reduction, the new price is:
X - 0.15X = 0.85X
Since we know that the new price is $680, we can set up an equation:
0.85X = 680
X = 800
Therefore, the original price of the computer last year was $800. 
The answer is (C) $800.

The Price of a Computer Fell 15% This Year