Nick and Rael went to buy computers at a sale. The usual price of 1 computer was $900 each.
SALEBuy 1 computer at 5% discount
Buy 2 or more computers at 15% discount each
- Nick bought 1 computer. How much did he pay?
- What is the maximum number of computers Rael can buy if he has $3000?
(a)
Discounted price of 1 computer in percent if only 1 was bought
= 100% - 5%
= 95%
100% of 1 computer = 900
1% of 1 computer = 900 ÷ 100 = 9
95% of 1 computer = 95 x 9 = 855
Amount that Nick paid for 1 computer = $855
(b)
Discounted price of 1 computer in percent if more than 1 was bought
= 100% - 15%
= 85%
85% of 1 computer = 85 x 9 = 765
Amount that Rael paid for 1 computer = $765
Maximum number of computers that Rael can buy if he has $3000
= 3000 ÷ 765
= 3 r 705
Answer(s): (a) $855; (b) 3