Vaidev had $12 more than Oliver. After each of them bought an identical skirt from a shop. Vaidev was left with 3 times as much money as Oliver. Given that Vaidev had $39 at first, how much did each skirt cost?
| |
Vaidev |
Oliver |
Difference |
| Before |
$39 |
|
$12 |
| Change |
- 1 skirt |
- 1 skirt |
|
| After |
3 u |
1 u |
2 u |
Since Vaidev and Oliver each bought an identical skirt, the difference in amount that they had at first and in the end remains the same.
2 u = 12
1 u = 12 ÷ 2 = 6
Amount that Vaidev had left
= 3 u
= 3 x 6
= $18
Cost of the skirt
= 39 - 18
= $21
Answer(s): $21
