PSLE Sarah bought 2 fans of the same model at a sale. She paid $198.95 for them.
- What was the price of the fan before discount?
- Riordan also bought 2 such fans at the price before discount. How much more did Riordan pay than Sarah?
|
Fan 1 |
Fan 2 |
Total |
Before |
100% |
100% |
200% |
Change (Discount) |
- 25% |
- 60% |
|
After |
75% |
40% |
115% |
(a)
Amount that Sarah paid for the 2 fans in percent
= 75% + 40%
= 115%
115% → 198.95
1% → 198.95 ÷ 115 = 1.73
100% → 100 x 1.73 = $173
Price of the fan before discount = $173
(b)
Amount that Riordan paid more than Sarah
= 25% + 60%
= 85%
= 85 x 1.73
= $147.05
Answer(s): (a) $173; (b) $147.05