PSLE Diana bought 2 fans of the same model at a sale. She paid $142.80 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 Diana?
|
Fan 1 |
Fan 2 |
Total |
Before |
100% |
100% |
200% |
Change (Discount) |
- 35% |
- 60% |
|
After |
65% |
40% |
105% |
(a)
Amount that Diana paid for the 2 fans in percent
= 65% + 40%
= 105%
105% → 142.80
1% → 142.80 ÷ 105 = 1.36
100% → 100 x 1.36 = $136
Price of the fan before discount = $136
(b)
Amount that Simon paid more than Diana
= 35% + 60%
= 95%
= 95 x 1.36
= $129.20
Answer(s): (a) $136; (b) $129.20