PSLE Fanny bought 2 fans of the same model at a sale. She paid $65.55 for them.
- What was the price of the fan before discount?
- Tommy also bought 2 such fans at the price before discount. How much more did Tommy pay than Fanny?
|
Fan 1 |
Fan 2 |
Total |
Before |
100% |
100% |
200% |
Change (Discount) |
- 10% |
- 75% |
|
After |
90% |
25% |
115% |
(a)
Amount that Fanny paid for the 2 fans in percent
= 90% + 25%
= 115%
115% → 65.55
1% → 65.55 ÷ 115 = 0.57
100% → 100 x 0.57 = $57
Price of the fan before discount = $57
(b)
Amount that Tommy paid more than Fanny
= 10% + 75%
= 85%
= 85 x 0.57
= $48.45
Answer(s): (a) $57; (b) $48.45