Valen and Cody went to buy hard drives at a sale. The usual price of 1 hard drive was $1800 each.
SALEBuy 1 hard drive at 10% discount
Buy 2 or more hard drives at 15% discount each
- Valen bought 1 hard drive. How much did he pay?
- What is the maximum number of hard drives Cody can buy if he has $5000?
(a)
Discounted price of 1 hard drive in percent if only 1 was bought
= 100% - 10%
= 90%
100% of 1 hard drive = 1800
1% of 1 hard drive = 1800 ÷ 100 = 18
90% of 1 hard drive = 90 x 18 = 1620
Amount that Valen paid for 1 hard drive = $1620
(b)
Discounted price of 1 hard drive in percent if more than 1 was bought
= 100% - 15%
= 85%
85% of 1 hard drive = 85 x 18 = 1530
Amount that Cody paid for 1 hard drive = $1530
Maximum number of hard drives that Cody can buy if he has $5000
= 5000 ÷ 1530
= 3 r 410
Answer(s): (a) $1620; (b) 3