PSLERael bought one laptop for $280 after a discount of 30%.
- What was the price of the laptop before discount?
- He paid $188 for a hi-fi system. The total discount for the laptop and hi-fi system was $167. What was the percentage discount given for the hi-fi system?
(a)
Price of the laptop after the discount in percentage
= 100% - 30%
= 70%
70% of the price of the laptop = 280
1% of the price of the laptop = 280 ÷ 70 = 4
100% of the price of the laptop = 100 x 4 = 400
Price of the laptop before the discount = $400
(b)
Discount of the laptop
= 400 - 280
= $120
Discount of the hi-fi system
= 167 - 120
= $47
Original price of the hi-fi system
= 188 + 47
= $235
Percentage discount of the hi-fi system
=
47235 x 100%
= 20%
Answer(s): (a) $400; (b) 20%