Ian and Asher went to buy massage chairs at a sale. The usual price of 1 massage chair was $600 each.

SALE
Buy 1 massage chair at 5% discount
Buy 2 or more massage chairs at 10% discount each

1. Ian bought 1 massage chair. How much did he pay?
2. What is the maximum number of massage chairs Asher can buy if he has $3000?

(a)
Discounted price of 1 massage chair in percent if only 1 was bought
= 100% - 5%
= 95%

100% of 1 massage chair = 600
1% of 1 massage chair = 600 ÷ 100 = 6
95% of 1 massage chair = 95 x 6 = 570 

Amount that Ian paid for 1 massage chair = $570

(b)
Discounted price of 1 massage chair in percent if more than 1 was bought
= 100% - 10%
= 90%

90% of 1 massage chair = 90 x 6 = 540

Amount that Asher paid for 1 massage chair = $540

Maximum number of massage chairs that Asher can buy if he has $3000
= 3000 ÷ 540
= 5 r 300

Answer(s): (a) $570; (b) 5