There were 85 more coats than vests in a shop. After 64 coats and 10% of the vests were sold, there were an equal number of coats and vests left. How many vests were there in the shop at first?
|
Vests |
Coats |
Before |
10 u |
9 u + 64 |
Change |
- 1 u |
- 64 |
After |
9 u |
9 u |
10% =
10100 =
110There were 85 more coats than vests at first. If another 85 vests were added at first, the number of vests and coats would be the same.
10 u + 85 = 9 u + 64
10 u - 9 u = 64 - 85
1 u = -21
1 u = -21 ÷ 1 = -21
Number of vests in the shop at first
= 10 u
= 10 x -21
= -210
Answer(s): -210