PSLE Hazel bought 2 fans of the same model at a sale. She paid $124.80 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 Hazel?
|
Fan 1 |
Fan 2 |
Total |
Before |
100% |
100% |
200% |
Change (Discount) |
- 10% |
- 70% |
|
After |
90% |
30% |
120% |
(a)
Amount that Hazel paid for the 2 fans in percent
= 90% + 30%
= 120%
120% → 124.80
1% → 124.80 ÷ 120 = 1.04
100% → 100 x 1.04 = $104
Price of the fan before discount = $104
(b)
Amount that Tommy paid more than Hazel
= 10% + 70%
= 80%
= 80 x 1.04
= $83.20
Answer(s): (a) $104; (b) $83.20