There were 66 more jackets than shirts in a shop. After 60 jackets and 30% of the shirts were sold, there were an equal number of jackets and shirts left. How many shirts were there in the shop at first?
| |
Shirts |
Jackets |
| Before |
10 u |
7 u + 60 |
| Change |
- 3 u |
- 60 |
| After |
7 u |
7 u |
30% =
30100 =
310There were 66 more jackets than shirts at first. If another 66 shirts were added at first, the number of shirts and jackets would be the same.
10 u + 66 = 7 u + 60
10 u - 7 u = 60 - 66
3 u = -6
1 u = -6 ÷ 3 = -2
Number of shirts in the shop at first
= 10 u
= 10 x -2
= -20
Answer(s): -20
