There were 82 more coats than windbreakers in a shop. After 86 coats and 10% of the windbreakers were sold, there were an equal number of coats and windbreakers left. How many windbreakers were there in the shop at first?
| |
Windbreakers |
Coats |
| Before |
10 u |
9 u + 86 |
| Change |
- 1 u |
- 86 |
| After |
9 u |
9 u |
10% =
10100 =
110There were 82 more coats than windbreakers at first. If another 82 windbreakers were added at first, the number of windbreakers and coats would be the same.
10 u + 82 = 9 u + 86
10 u - 9 u = 86 - 82
1 u = 4
1 u = 4 ÷ 1 = 4
Number of windbreakers in the shop at first
= 10 u
= 10 x 4
= 40
Answer(s): 40
