PSLE Natalie bought 2 fans of the same model at a sale. She paid $176.80 for them.
- What was the price of the fan before discount?
- Zeph also bought 2 such fans at the price before discount. How much more did Zeph pay than Natalie?
|
Fan 1 |
Fan 2 |
Total |
Before |
100% |
100% |
200% |
Change (Discount) |
- 10% |
- 60% |
|
After |
90% |
40% |
130% |
(a)
Amount that Natalie paid for the 2 fans in percent
= 90% + 40%
= 130%
130% → 176.80
1% → 176.80 ÷ 130 = 1.36
100% → 100 x 1.36 = $136
Price of the fan before discount = $136
(b)
Amount that Zeph paid more than Natalie
= 10% + 60%
= 70%
= 70 x 1.36
= $95.20
Answer(s): (a) $136; (b) $95.20