Mark and Fabian went to buy television sets at a sale. The usual price of 1 television set was $200 each.

SALE
Buy 1 television set at 20% discount
Buy 2 or more television sets at 30% discount each

1. Mark bought 1 television set. How much did he pay?
2. What is the maximum number of television sets Fabian can buy if he has $2000?

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

100% of 1 television set = 200
1% of 1 television set = 200 ÷ 100 = 2
80% of 1 television set = 80 x 2 = 160 

Amount that Mark paid for 1 television set = $160

(b)
Discounted price of 1 television set in percent if more than 1 was bought
= 100% - 30%
= 70%

70% of 1 television set = 70 x 2 = 140

Amount that Fabian paid for 1 television set = $140

Maximum number of television sets that Fabian can buy if he has $2000
= 2000 ÷ 140
= 14 r 40

Answer(s): (a) $160; (b) 14