PSLE Zoe bought 2 fans of the same model at a sale. She paid $209.25 for them.
- What was the price of the fan before discount?
- John also bought 2 such fans at the price before discount. How much more did John pay than Zoe?
|
Fan 1 |
Fan 2 |
Total |
Before |
100% |
100% |
200% |
Change (Discount) |
- 10% |
- 55% |
|
After |
90% |
45% |
135% |
(a)
Amount that Zoe paid for the 2 fans in percent
= 90% + 45%
= 135%
135% → 209.25
1% → 209.25 ÷ 135 = 1.55
100% → 100 x 1.55 = $155
Price of the fan before discount = $155
(b)
Amount that John paid more than Zoe
= 10% + 55%
= 65%
= 65 x 1.55
= $100.75
Answer(s): (a) $155; (b) $100.75