PSLE Usha bought 2 fans of the same model at a sale. She paid $104.50 for them.
- What was the price of the fan before discount?
- Charlie also bought 2 such fans at the price before discount. How much more did Charlie pay than Usha?
|
Fan 1 |
Fan 2 |
Total |
Before |
100% |
100% |
200% |
Change (Discount) |
- 45% |
- 60% |
|
After |
55% |
40% |
95% |
(a)
Amount that Usha paid for the 2 fans in percent
= 55% + 40%
= 95%
95% → 104.50
1% → 104.50 ÷ 95 = 1.1
100% → 100 x 1.1 = $110
Price of the fan before discount = $110
(b)
Amount that Charlie paid more than Usha
= 45% + 60%
= 105%
= 105 x 1.1
= $115.50
Answer(s): (a) $110; (b) $115.50