No of computers - 5

tanyajoseph · Posted: Sat Sep 01, 2007 10:36 am Post subject: No of computers - 5

A company wants to buy computers and printers for a new branch office, and the number of computers can be at most 3 times the number of printers. Computers cost $1500 each, and printers cost $300 each. What is the greatest number of computers that the company can buy if it has a total of $9100 to spend on computers and printers?

A) 2
B) 3
C) 4
D) 5
E) 6

agps · Posted: Sat Sep 01, 2007 10:52 am Post subject:

if they buy 3 computer and 1 printer, they spend

3*1500+300 = 4800
add 1 computer and 1 printer 4800+1500+300 = 6600.
now, you can still buy 2 more computers before needing to buy another printer, but 2 computers coste 3000, which would bring us out of budget, so the answer is 1 more computer, 5 computers and 2 printers = 8100
there is still money left, but you can't buy any more computers adn you need those 2 printers to satisfy the requirements.
therefore the answer is 5 or D.