PSLEPerry bought one mobile phone for $288 after a discount of 20%.
- What was the price of the mobile phone before discount?
- He paid $162 for a hard drive. The total discount for the mobile phone and hard drive was $180. What was the percentage discount given for the hard drive?
(a)
Price of the mobile phone after the discount in percentage
= 100% - 20%
= 80%
80% of the price of the mobile phone = 288
1% of the price of the mobile phone = 288 ÷ 80 = 3.6
100% of the price of the mobile phone = 100 x 3.6 = 360
Price of the mobile phone before the discount = $360
(b)
Discount of the mobile phone
= 360 - 288
= $72
Discount of the hard drive
= 180 - 72
= $108
Original price of the hard drive
= 162 + 108
= $270
Percentage discount of the hard drive
=
108270 x 100%
= 40%
Answer(s): (a) $360; (b) 40%