Profit and Loss
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
Related MCQ Profit and Loss
MOCK TEST SERIES