George and Glen went to buy laptops at a sale. The usual price of 1 laptop was $1600 each.
SALEBuy 1 laptop at 5% discount
Buy 2 or more laptops at 10% discount each
- George bought 1 laptop. How much did he pay?
- What is the maximum number of laptops Glen can buy if he has $6000?
(a)
Discounted price of 1 laptop in percent if only 1 was bought
= 100% - 5%
= 95%
100% of 1 laptop = 1600
1% of 1 laptop = 1600 ÷ 100 = 16
95% of 1 laptop = 95 x 16 = 1520
Amount that George paid for 1 laptop = $1520
(b)
Discounted price of 1 laptop in percent if more than 1 was bought
= 100% - 10%
= 90%
90% of 1 laptop = 90 x 16 = 1440
Amount that Glen paid for 1 laptop = $1440
Maximum number of laptops that Glen can buy if he has $6000
= 6000 ÷ 1440
= 4 r 240
Answer(s): (a) $1520; (b) 4