Jack and Cole went to buy massage chairs at a sale. The usual price of 1 massage chair was $1200 each.

SALE
Buy 1 massage chair at 5% discount
Buy 2 or more massage chairs at 15% discount each

1. Jack bought 1 massage chair. How much did he pay?
2. What is the maximum number of massage chairs Cole can buy if he has $5000?

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

100% of 1 massage chair = 1200
1% of 1 massage chair = 1200 ÷ 100 = 12
95% of 1 massage chair = 95 x 12 = 1140 

Amount that Jack paid for 1 massage chair = $1140

(b)
Discounted price of 1 massage chair in percent if more than 1 was bought
= 100% - 15%
= 85%

85% of 1 massage chair = 85 x 12 = 1020

Amount that Cole paid for 1 massage chair = $1020

Maximum number of massage chairs that Cole can buy if he has $5000
= 5000 ÷ 1020
= 4 r 920

Answer(s): (a) $1140; (b) 4