Justin and Michael went to buy projectors at a sale. The usual price of 1 projector was $1900 each.
SALEBuy 1 projector at 5% discount
Buy 2 or more projectors at 10% discount each
- Justin bought 1 projector. How much did he pay?
- What is the maximum number of projectors Michael can buy if he has $5000?
(a)
Discounted price of 1 projector in percent if only 1 was bought
= 100% - 5%
= 95%
100% of 1 projector = 1900
1% of 1 projector = 1900 ÷ 100 = 19
95% of 1 projector = 95 x 19 = 1805
Amount that Justin paid for 1 projector = $1805
(b)
Discounted price of 1 projector in percent if more than 1 was bought
= 100% - 10%
= 90%
90% of 1 projector = 90 x 19 = 1710
Amount that Michael paid for 1 projector = $1710
Maximum number of projectors that Michael can buy if he has $5000
= 5000 ÷ 1710
= 2 r 1580
Answer(s): (a) $1805; (b) 2