PSLE Gillian bought 2 fans of the same model at a sale. She paid $125.80 for them.
- What was the price of the fan before discount?
- Simon also bought 2 such fans at the price before discount. How much more did Simon pay than Gillian?
|
Fan 1 |
Fan 2 |
Total |
Before |
100% |
100% |
200% |
Change (Discount) |
- 45% |
- 70% |
|
After |
55% |
30% |
85% |
(a)
Amount that Gillian paid for the 2 fans in percent
= 55% + 30%
= 85%
85% → 125.80
1% → 125.80 ÷ 85 = 1.48
100% → 100 x 1.48 = $148
Price of the fan before discount = $148
(b)
Amount that Simon paid more than Gillian
= 45% + 70%
= 115%
= 115 x 1.48
= $170.20
Answer(s): (a) $148; (b) $170.20