PSLE Lynn bought 2 fans of the same model at a sale. She paid $145.60 for them.
- What was the price of the fan before discount?
- Paul also bought 2 such fans at the price before discount. How much more did Paul pay than Lynn?
|
Fan 1 |
Fan 2 |
Total |
Before |
100% |
100% |
200% |
Change (Discount) |
- 20% |
- 50% |
|
After |
80% |
50% |
130% |
(a)
Amount that Lynn paid for the 2 fans in percent
= 80% + 50%
= 130%
130% → 145.60
1% → 145.60 ÷ 130 = 1.12
100% → 100 x 1.12 = $112
Price of the fan before discount = $112
(b)
Amount that Paul paid more than Lynn
= 20% + 50%
= 70%
= 70 x 1.12
= $78.40
Answer(s): (a) $112; (b) $78.40