PSLE Opal bought 2 fans of the same model at a sale. She paid $131.25 for them.
- What was the price of the fan before discount?
- Nick also bought 2 such fans at the price before discount. How much more did Nick pay than Opal?
|
Fan 1 |
Fan 2 |
Total |
Before |
100% |
100% |
200% |
Change (Discount) |
- 20% |
- 55% |
|
After |
80% |
45% |
125% |
(a)
Amount that Opal paid for the 2 fans in percent
= 80% + 45%
= 125%
125% → 131.25
1% → 131.25 ÷ 125 = 1.05
100% → 100 x 1.05 = $105
Price of the fan before discount = $105
(b)
Amount that Nick paid more than Opal
= 20% + 55%
= 75%
= 75 x 1.05
= $78.75
Answer(s): (a) $105; (b) $78.75