PSLE Eva wanted to buy a jumpsuit. She saw a grey jumpsuit on sale at 20% discount and a red jumpsuit at 30% discount. Both jumpsuits had the same original price before the discounts. To buy the grey jumpsuit, Eva would need $8.50 more that what she had. So Eva bought the red jumpsuit. After that, she had $1 left.
- What was the original price of the grey jumpsuit?
- How much money did Eva have at first?
|
Grey jumpsuit |
Red jumpsuit |
Before |
100% |
100% |
Change |
- 20% |
- 30% |
After |
80% |
70% |
(a)
Difference in the discount between the grey jumpsuit and the red jumpsuit
= 30% - 20%
= 10%
Additional amount that Eva needed to pay if she would buy the grey jumpsuit
= 8.50 + 1
= $9.50
10% → 9.50
100% →
9.5010 x 100 = 95
Original price of the grey jumpsuit = $95
(b)
Price of the red jumpsuit after discount in percentage
= 100% - 30%
= 70%
Price of the red jumpsuit after discount
=
70100 x 95
= $66.50
Amount that Eva had at first
= 66.50 + 1
= $67.50
Answer(s): (a) $95; (b) $67.50