Bobby had $77 more than Michael. After each of them bought an identical skirt from a shop. Bobby was left with 8 times as much money as Michael. Given that Bobby had $113 at first, how much did each skirt cost?
| |
Bobby |
Michael |
Difference |
| Before |
$113 |
|
$77 |
| Change |
- 1 skirt |
- 1 skirt |
|
| After |
8 u |
1 u |
7 u |
Since Bobby and Michael each bought an identical skirt, the difference in amount that they had at first and in the end remains the same.
7 u = 77
1 u = 77 ÷ 7 = 11
Amount that Bobby had left
= 8 u
= 8 x 11
= $88
Cost of the skirt
= 113 - 88
= $25
Answer(s): $25
