PSLE Dana bought 2 fans of the same model at a sale. She paid $152.90 for them.
- What was the price of the fan before discount?
- Eric also bought 2 such fans at the price before discount. How much more did Eric pay than Dana?
|
Fan 1 |
Fan 2 |
Total |
Before |
100% |
100% |
200% |
Change (Discount) |
- 35% |
- 55% |
|
After |
65% |
45% |
110% |
(a)
Amount that Dana paid for the 2 fans in percent
= 65% + 45%
= 110%
110% → 152.90
1% → 152.90 ÷ 110 = 1.39
100% → 100 x 1.39 = $139
Price of the fan before discount = $139
(b)
Amount that Eric paid more than Dana
= 35% + 55%
= 90%
= 90 x 1.39
= $125.10
Answer(s): (a) $139; (b) $125.10