GRE Question of the Day (July 22nd)

To reproduce an old photograph, a photographer charges x dollars to make a negative, \({\frac{{3x}}{{5}}}\) dollars for each of the first 10 prints, and \({\frac{{x}}{{5}}}\) dollars for each print in excess of 10 prints. If $45 is the total charge to make a negative and 20 prints from an old photograph, what is the value of x?

(A) 3
(B) 3.5
(C) 4
(D) 4.5
(E) 5

Correct Answer - E - (click and drag your mouse to see the answer)