PSLE Jane bought 2 fans of the same model at a sale. She paid $106.25 for them.
- What was the price of the fan before discount?
- Ken also bought 2 such fans at the price before discount. How much more did Ken pay than Jane?
|
Fan 1 |
Fan 2 |
Total |
Before |
100% |
100% |
200% |
Change (Discount) |
- 45% |
- 70% |
|
After |
55% |
30% |
85% |
(a)
Amount that Jane paid for the 2 fans in percent
= 55% + 30%
= 85%
85% → 106.25
1% → 106.25 ÷ 85 = 1.25
100% → 100 x 1.25 = $125
Price of the fan before discount = $125
(b)
Amount that Ken paid more than Jane
= 45% + 70%
= 115%
= 115 x 1.25
= $143.75
Answer(s): (a) $125; (b) $143.75