Quantitative Aptitude Quest
Profit and Loss
A manufacturer prints books at a cost of $x each for the first thousand copies printed. The second thousand copies printed cost $.9x each. If it costs $3,264 to print 1,400 copies of book, then x is
1. 1.63
2. 2.10
3. 2.33
4. 2.40
The cost of 1,400 copies is the cost of the first 1,000 plus the cost of the next 400 copies. Each of the first 1,000 copies cost $x, so the first 1,000 copies cost $1,000x. The next 400 each cost $9x, so the next 400 copies will cost $(400)(.9x) = $360x. So the total cost of the 1,400 copies should be $1,000x + $360x = $1,360x, which must equal $3,264. Therefore, x=3,26/1,360 = 2.40