PSLE Marion bought 2 fans of the same model at a sale. She paid $148.35 for them.
- What was the price of the fan before discount?
- Sean also bought 2 such fans at the price before discount. How much more did Sean pay than Marion?
|
Fan 1 |
Fan 2 |
Total |
Before |
100% |
100% |
200% |
Change (Discount) |
- 10% |
- 75% |
|
After |
90% |
25% |
115% |
(a)
Amount that Marion paid for the 2 fans in percent
= 90% + 25%
= 115%
115% → 148.35
1% → 148.35 ÷ 115 = 1.29
100% → 100 x 1.29 = $129
Price of the fan before discount = $129
(b)
Amount that Sean paid more than Marion
= 10% + 75%
= 85%
= 85 x 1.29
= $109.65
Answer(s): (a) $129; (b) $109.65