PSLE Opal bought 2 fans of the same model at a sale. She paid $65.55 for them.
- What was the price of the fan before discount?
- Gabriel also bought 2 such fans at the price before discount. How much more did Gabriel pay than Opal?
|
Fan 1 |
Fan 2 |
Total |
Before |
100% |
100% |
200% |
Change (Discount) |
- 45% |
- 60% |
|
After |
55% |
40% |
95% |
(a)
Amount that Opal paid for the 2 fans in percent
= 55% + 40%
= 95%
95% → 65.55
1% → 65.55 ÷ 95 = 0.69
100% → 100 x 0.69 = $69
Price of the fan before discount = $69
(b)
Amount that Gabriel paid more than Opal
= 45% + 60%
= 105%
= 105 x 0.69
= $72.45
Answer(s): (a) $69; (b) $72.45