PSLE Sarah bought 2 fans of the same model at a sale. She paid $45.60 for them.
- What was the price of the fan before discount?
- Rael also bought 2 such fans at the price before discount. How much more did Rael pay than Sarah?
|
Fan 1 |
Fan 2 |
Total |
Before |
100% |
100% |
200% |
Change (Discount) |
- 35% |
- 70% |
|
After |
65% |
30% |
95% |
(a)
Amount that Sarah paid for the 2 fans in percent
= 65% + 30%
= 95%
95% → 45.60
1% → 45.60 ÷ 95 = 0.48
100% → 100 x 0.48 = $48
Price of the fan before discount = $48
(b)
Amount that Rael paid more than Sarah
= 35% + 70%
= 105%
= 105 x 0.48
= $50.40
Answer(s): (a) $48; (b) $50.40