Zane and Jenson went to buy television sets at a sale. The usual price of 1 television set was $2000 each.

SALE
Buy 1 television set at 10% discount
Buy 2 or more television sets at 20% discount each

1. Zane bought 1 television set. How much did he pay?
2. What is the maximum number of television sets Jenson can buy if he has $3000?

(a)
Discounted price of 1 television set in percent if only 1 was bought
= 100% - 10%
= 90%

100% of 1 television set = 2000
1% of 1 television set = 2000 ÷ 100 = 20
90% of 1 television set = 90 x 20 = 1800 

Amount that Zane paid for 1 television set = $1800

(b)
Discounted price of 1 television set in percent if more than 1 was bought
= 100% - 20%
= 80%

80% of 1 television set = 80 x 20 = 1600

Amount that Jenson paid for 1 television set = $1600

Maximum number of television sets that Jenson can buy if he has $3000
= 3000 ÷ 1600
= 1 r 1400

Answer(s): (a) $1800; (b) 1