Vaidev bought a television and a home theater system. The original price of the television was $2000 and the original price of the home theater system was half the original price of the television. Vaidev was given a 20% discount on the home theater system. How much did Vaidev pay altogether?
Original price of the home theater system
= 2000 ÷ 2
= $1000

Discounted price of the home theater system in percent
= 100% - 20%
= 80%

100% of the price of the home theater system = 1000
1% of the price of the home theater system = 1000 ÷ 100 = 10
80% of the price of the home theater system = 80 x 10 = 800

Discounted price of the home theater system = $800

Total amount that Vaidev paid
= 2000 + 800
= $2800

Answer(s): $2800