PSLEPeter bought one hi-fi system for $207 after a discount of 10%.
- What was the price of the hi-fi system before discount?
- He paid $175 for a computer. The total discount for the hi-fi system and computer was $198. What was the percentage discount given for the computer?
(a)
Price of the hi-fi system after the discount in percentage
= 100% - 10%
= 90%
90% of the price of the hi-fi system = 207
1% of the price of the hi-fi system = 207 ÷ 90 = 2.3
100% of the price of the hi-fi system = 100 x 2.3 = 230
Price of the hi-fi system before the discount = $230
(b)
Discount of the hi-fi system
= 230 - 207
= $23
Discount of the computer
= 198 - 23
= $175
Original price of the computer
= 175 + 175
= $350
Percentage discount of the computer
=
175350 x 100%
= 50%
Answer(s): (a) $230; (b) 50%