PSLE Kathy bought 2 fans of the same model at a sale. She paid $128.75 for them.
- What was the price of the fan before discount?
- Tom also bought 2 such fans at the price before discount. How much more did Tom pay than Kathy?
|
Fan 1 |
Fan 2 |
Total |
Before |
100% |
100% |
200% |
Change (Discount) |
- 10% |
- 65% |
|
After |
90% |
35% |
125% |
(a)
Amount that Kathy paid for the 2 fans in percent
= 90% + 35%
= 125%
125% → 128.75
1% → 128.75 ÷ 125 = 1.03
100% → 100 x 1.03 = $103
Price of the fan before discount = $103
(b)
Amount that Tom paid more than Kathy
= 10% + 65%
= 75%
= 75 x 1.03
= $77.25
Answer(s): (a) $103; (b) $77.25