There were 40 more blouses than windbreakers in a shop. After 78 blouses and 10% of the windbreakers were sold, there were an equal number of blouses and windbreakers left. How many windbreakers were there in the shop at first?
| |
Windbreakers |
Blouses |
| Before |
10 u |
9 u + 78 |
| Change |
- 1 u |
- 78 |
| After |
9 u |
9 u |
10% =
10100 =
110There were 40 more blouses than windbreakers at first. If another 40 windbreakers were added at first, the number of windbreakers and blouses would be the same.
10 u + 40 = 9 u + 78
10 u - 9 u = 78 - 40
1 u = 38
1 u = 38 ÷ 1 = 38
Number of windbreakers in the shop at first
= 10 u
= 10 x 38
= 380
Answer(s): 380
