There were 77 more blouses than shirts in a shop. After 50 blouses and 20% of the shirts were sold, there were an equal number of blouses and shirts left. How many shirts were there in the shop at first?
| |
Shirts |
Blouses |
| Before |
5 u |
4 u + 50 |
| Change |
- 1 u |
- 50 |
| After |
4 u |
4 u |
20% =
20100 =
15There were 77 more blouses than shirts at first. If another 77 shirts were added at first, the number of shirts and blouses would be the same.
5 u + 77 = 4 u + 50
5 u - 4 u = 50 - 77
1 u = -27
1 u = -27 ÷ 1 = -27
Number of shirts in the shop at first
= 5 u
= 5 x -27
= -135
Answer(s): -135
