PSLE Pamela bought 2 fans of the same model at a sale. She paid $166.05 for them.
- What was the price of the fan before discount?
- Elijah also bought 2 such fans at the price before discount. How much more did Elijah pay than Pamela?
|
Fan 1 |
Fan 2 |
Total |
Before |
100% |
100% |
200% |
Change (Discount) |
- 10% |
- 55% |
|
After |
90% |
45% |
135% |
(a)
Amount that Pamela paid for the 2 fans in percent
= 90% + 45%
= 135%
135% → 166.05
1% → 166.05 ÷ 135 = 1.23
100% → 100 x 1.23 = $123
Price of the fan before discount = $123
(b)
Amount that Elijah paid more than Pamela
= 10% + 55%
= 65%
= 65 x 1.23
= $79.95
Answer(s): (a) $123; (b) $79.95