PSLE Yen bought 2 fans of the same model at a sale. She paid $93.60 for them.
- What was the price of the fan before discount?
- Vaidev also bought 2 such fans at the price before discount. How much more did Vaidev pay than Yen?
|
Fan 1 |
Fan 2 |
Total |
Before |
100% |
100% |
200% |
Change (Discount) |
- 10% |
- 60% |
|
After |
90% |
40% |
130% |
(a)
Amount that Yen paid for the 2 fans in percent
= 90% + 40%
= 130%
130% → 93.60
1% → 93.60 ÷ 130 = 0.72
100% → 100 x 0.72 = $72
Price of the fan before discount = $72
(b)
Amount that Vaidev paid more than Yen
= 10% + 60%
= 70%
= 70 x 0.72
= $50.40
Answer(s): (a) $72; (b) $50.40