PSLE Barbara bought 2 fans of the same model at a sale. She paid $138.60 for them.
- What was the price of the fan before discount?
- Sam also bought 2 such fans at the price before discount. How much more did Sam pay than Barbara?
|
Fan 1 |
Fan 2 |
Total |
Before |
100% |
100% |
200% |
Change (Discount) |
- 35% |
- 55% |
|
After |
65% |
45% |
110% |
(a)
Amount that Barbara paid for the 2 fans in percent
= 65% + 45%
= 110%
110% → 138.60
1% → 138.60 ÷ 110 = 1.26
100% → 100 x 1.26 = $126
Price of the fan before discount = $126
(b)
Amount that Sam paid more than Barbara
= 35% + 55%
= 90%
= 90 x 1.26
= $113.40
Answer(s): (a) $126; (b) $113.40