PSLE Sarah bought 2 fans of the same model at a sale. She paid $139.65 for them.
- What was the price of the fan before discount?
- Harry also bought 2 such fans at the price before discount. How much more did Harry pay than Sarah?
|
Fan 1 |
Fan 2 |
Total |
Before |
100% |
100% |
200% |
Change (Discount) |
- 25% |
- 70% |
|
After |
75% |
30% |
105% |
(a)
Amount that Sarah paid for the 2 fans in percent
= 75% + 30%
= 105%
105% → 139.65
1% → 139.65 ÷ 105 = 1.33
100% → 100 x 1.33 = $133
Price of the fan before discount = $133
(b)
Amount that Harry paid more than Sarah
= 25% + 70%
= 95%
= 95 x 1.33
= $126.35
Answer(s): (a) $133; (b) $126.35