Sam and Sean went to buy hard drives at a sale. The usual price of 1 hard drive was $2000 each.
SALEBuy 1 hard drive at 20% discount
Buy 2 or more hard drives at 35% discount each
- Sam bought 1 hard drive. How much did he pay?
- What is the maximum number of hard drives Sean can buy if he has $3000?
(a)
Discounted price of 1 hard drive in percent if only 1 was bought
= 100% - 20%
= 80%
100% of 1 hard drive = 2000
1% of 1 hard drive = 2000 ÷ 100 = 20
80% of 1 hard drive = 80 x 20 = 1600
Amount that Sam paid for 1 hard drive = $1600
(b)
Discounted price of 1 hard drive in percent if more than 1 was bought
= 100% - 35%
= 65%
65% of 1 hard drive = 65 x 20 = 1300
Amount that Sean paid for 1 hard drive = $1300
Maximum number of hard drives that Sean can buy if he has $3000
= 3000 ÷ 1300
= 2 r 400
Answer(s): (a) $1600; (b) 2