There were 83 more coats than vests in a shop. After 67 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 + 67 |
| Change |
- 1 u |
- 67 |
| After |
9 u |
9 u |
10% =
10100 =
110There were 83 more coats than vests at first. If another 83 vests were added at first, the number of vests and coats would be the same.
10 u + 83 = 9 u + 67
10 u - 9 u = 67 - 83
1 u = -16
1 u = -16 ÷ 1 = -16
Number of vests in the shop at first
= 10 u
= 10 x -16
= -160
Answer(s): -160
