PSLE Penelope bought 2 fans of the same model at a sale. She paid $91.80 for them.
- What was the price of the fan before discount?
- Rael also bought 2 such fans at the price before discount. How much more did Rael pay than Penelope?
|
Fan 1 |
Fan 2 |
Total |
Before |
100% |
100% |
200% |
Change (Discount) |
- 10% |
- 55% |
|
After |
90% |
45% |
135% |
(a)
Amount that Penelope paid for the 2 fans in percent
= 90% + 45%
= 135%
135% → 91.80
1% → 91.80 ÷ 135 = 0.68
100% → 100 x 0.68 = $68
Price of the fan before discount = $68
(b)
Amount that Rael paid more than Penelope
= 10% + 55%
= 65%
= 65 x 0.68
= $44.20
Answer(s): (a) $68; (b) $44.20