There were 70 more coats than blouses in a shop. After 69 coats and 10% of the blouses were sold, there were an equal number of coats and blouses left. How many blouses were there in the shop at first?
| |
Blouses |
Coats |
| Before |
10 u |
9 u + 69 |
| Change |
- 1 u |
- 69 |
| After |
9 u |
9 u |
10% =
10100 =
110There were 70 more coats than blouses at first. If another 70 blouses were added at first, the number of blouses and coats would be the same.
10 u + 70 = 9 u + 69
10 u - 9 u = 69 - 70
1 u = -1
1 u = -1 ÷ 1 = -1
Number of blouses in the shop at first
= 10 u
= 10 x -1
= -10
Answer(s): -10
