PSLE Tiffany bought 2 fans of the same model at a sale. She paid $75.90 for them.
- What was the price of the fan before discount?
- Lee also bought 2 such fans at the price before discount. How much more did Lee pay than Tiffany?
|
Fan 1 |
Fan 2 |
Total |
Before |
100% |
100% |
200% |
Change (Discount) |
- 10% |
- 75% |
|
After |
90% |
25% |
115% |
(a)
Amount that Tiffany paid for the 2 fans in percent
= 90% + 25%
= 115%
115% → 75.90
1% → 75.90 ÷ 115 = 0.66
100% → 100 x 0.66 = $66
Price of the fan before discount = $66
(b)
Amount that Lee paid more than Tiffany
= 10% + 75%
= 85%
= 85 x 0.66
= $56.10
Answer(s): (a) $66; (b) $56.10