PSLE Lynn bought 2 fans of the same model at a sale. She paid $133.65 for them.
- What was the price of the fan before discount?
- Japheth also bought 2 such fans at the price before discount. How much more did Japheth pay than Lynn?
|
Fan 1 |
Fan 2 |
Total |
Before |
100% |
100% |
200% |
Change (Discount) |
- 10% |
- 55% |
|
After |
90% |
45% |
135% |
(a)
Amount that Lynn paid for the 2 fans in percent
= 90% + 45%
= 135%
135% → 133.65
1% → 133.65 ÷ 135 = 0.99
100% → 100 x 0.99 = $99
Price of the fan before discount = $99
(b)
Amount that Japheth paid more than Lynn
= 10% + 55%
= 65%
= 65 x 0.99
= $64.35
Answer(s): (a) $99; (b) $64.35