PSLEPeter bought one laptop for $221 after a discount of 15%.
- What was the price of the laptop before discount?
- He paid $150 for a mobile phone. The total discount for the laptop and mobile phone was $189. What was the percentage discount given for the mobile phone?
(a)
Price of the laptop after the discount in percentage
= 100% - 15%
= 85%
85% of the price of the laptop = 221
1% of the price of the laptop = 221 ÷ 85 = 2.6
100% of the price of the laptop = 100 x 2.6 = 260
Price of the laptop before the discount = $260
(b)
Discount of the laptop
= 260 - 221
= $39
Discount of the mobile phone
= 189 - 39
= $150
Original price of the mobile phone
= 150 + 150
= $300
Percentage discount of the mobile phone
=
150300 x 100%
= 50%
Answer(s): (a) $260; (b) 50%