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

SALE
Buy 1 massage chair at 20% discount
Buy 2 or more massage chairs at 35% discount each

1. Japheth bought 1 massage chair. How much did he pay?
2. What is the maximum number of massage chairs Ahmad can buy if he has $2000?

(a)
Discounted price of 1 massage chair in percent if only 1 was bought
= 100% - 20%
= 80%

100% of 1 massage chair = 600
1% of 1 massage chair = 600 ÷ 100 = 6
80% of 1 massage chair = 80 x 6 = 480 

Amount that Japheth paid for 1 massage chair = $480

(b)
Discounted price of 1 massage chair in percent if more than 1 was bought
= 100% - 35%
= 65%

65% of 1 massage chair = 65 x 6 = 390

Amount that Ahmad paid for 1 massage chair = $390

Maximum number of massage chairs that Ahmad can buy if he has $2000
= 2000 ÷ 390
= 5 r 50

Answer(s): (a) $480; (b) 5