Xavier and Reggie went to buy hard drives at a sale. The usual price of 1 hard drive was $1400 each.
SALEBuy 1 hard drive at 20% discount
Buy 2 or more hard drives at 30% discount each
- Xavier bought 1 hard drive. How much did he pay?
- What is the maximum number of hard drives Reggie can buy if he has $8000?
(a)
Discounted price of 1 hard drive in percent if only 1 was bought
= 100% - 20%
= 80%
100% of 1 hard drive = 1400
1% of 1 hard drive = 1400 ÷ 100 = 14
80% of 1 hard drive = 80 x 14 = 1120
Amount that Xavier paid for 1 hard drive = $1120
(b)
Discounted price of 1 hard drive in percent if more than 1 was bought
= 100% - 30%
= 70%
70% of 1 hard drive = 70 x 14 = 980
Amount that Reggie paid for 1 hard drive = $980
Maximum number of hard drives that Reggie can buy if he has $8000
= 8000 ÷ 980
= 8 r 160
Answer(s): (a) $1120; (b) 8