There were 97 more shirts than jackets in a shop. After 89 shirts and 10% of the jackets were sold, there were an equal number of shirts and jackets left. How many jackets were there in the shop at first?
| |
Jackets |
Shirts |
| Before |
10 u |
9 u + 89 |
| Change |
- 1 u |
- 89 |
| After |
9 u |
9 u |
10% =
10100 =
110There were 97 more shirts than jackets at first. If another 97 jackets were added at first, the number of jackets and shirts would be the same.
10 u + 97 = 9 u + 89
10 u - 9 u = 89 - 97
1 u = -8
1 u = -8 ÷ 1 = -8
Number of jackets in the shop at first
= 10 u
= 10 x -8
= -80
Answer(s): -80
