PSLE Gillian bought 2 fans of the same model at a sale. She paid $172.20 for them.
- What was the price of the fan before discount?
- Howard also bought 2 such fans at the price before discount. How much more did Howard pay than Gillian?
|
Fan 1 |
Fan 2 |
Total |
Before |
100% |
100% |
200% |
Change (Discount) |
- 35% |
- 60% |
|
After |
65% |
40% |
105% |
(a)
Amount that Gillian paid for the 2 fans in percent
= 65% + 40%
= 105%
105% → 172.20
1% → 172.20 ÷ 105 = 1.64
100% → 100 x 1.64 = $164
Price of the fan before discount = $164
(b)
Amount that Howard paid more than Gillian
= 35% + 60%
= 95%
= 95 x 1.64
= $155.80
Answer(s): (a) $164; (b) $155.80