PSLE Olivia bought 2 fans of the same model at a sale. She paid $51.45 for them.
- What was the price of the fan before discount?
- Tim also bought 2 such fans at the price before discount. How much more did Tim pay than Olivia?
|
Fan 1 |
Fan 2 |
Total |
Before |
100% |
100% |
200% |
Change (Discount) |
- 45% |
- 50% |
|
After |
55% |
50% |
105% |
(a)
Amount that Olivia paid for the 2 fans in percent
= 55% + 50%
= 105%
105% → 51.45
1% → 51.45 ÷ 105 = 0.49
100% → 100 x 0.49 = $49
Price of the fan before discount = $49
(b)
Amount that Tim paid more than Olivia
= 45% + 50%
= 95%
= 95 x 0.49
= $46.55
Answer(s): (a) $49; (b) $46.55