PSLEWill bought one stereo system for $216 after a discount of 25%.
- What was the price of the stereo system before discount?
- He paid $117 for a laptop. The total discount for the stereo system and laptop was $150. What was the percentage discount given for the laptop?
(a)
Price of the stereo system after the discount in percentage
= 100% - 25%
= 75%
75% of the price of the stereo system = 216
1% of the price of the stereo system = 216 ÷ 75 = 2.88
100% of the price of the stereo system = 100 x 2.88 = 288
Price of the stereo system before the discount = $288
(b)
Discount of the stereo system
= 288 - 216
= $72
Discount of the laptop
= 150 - 72
= $78
Original price of the laptop
= 117 + 78
= $195
Percentage discount of the laptop
=
78195 x 100%
= 40%
Answer(s): (a) $288; (b) 40%