PSLE Mary bought 2 fans of the same model at a sale. She paid $117.50 for them.
- What was the price of the fan before discount?
- Caden also bought 2 such fans at the price before discount. How much more did Caden pay than Mary?
|
Fan 1 |
Fan 2 |
Total |
Before |
100% |
100% |
200% |
Change (Discount) |
- 20% |
- 55% |
|
After |
80% |
45% |
125% |
(a)
Amount that Mary paid for the 2 fans in percent
= 80% + 45%
= 125%
125% → 117.50
1% → 117.50 ÷ 125 = 0.94
100% → 100 x 0.94 = $94
Price of the fan before discount = $94
(b)
Amount that Caden paid more than Mary
= 20% + 55%
= 75%
= 75 x 0.94
= $70.50
Answer(s): (a) $94; (b) $70.50