PSLE Natalie bought 2 fans of the same model at a sale. She paid $136.50 for them.
- What was the price of the fan before discount?
- Luis also bought 2 such fans at the price before discount. How much more did Luis pay than Natalie?
|
Fan 1 |
Fan 2 |
Total |
Before |
100% |
100% |
200% |
Change (Discount) |
- 25% |
- 70% |
|
After |
75% |
30% |
105% |
(a)
Amount that Natalie paid for the 2 fans in percent
= 75% + 30%
= 105%
105% → 136.50
1% → 136.50 ÷ 105 = 1.3
100% → 100 x 1.3 = $130
Price of the fan before discount = $130
(b)
Amount that Luis paid more than Natalie
= 25% + 70%
= 95%
= 95 x 1.3
= $123.50
Answer(s): (a) $130; (b) $123.50