There were 77 more skirts than shirts in a shop. After 86 skirts and 30% of the shirts were sold, there were an equal number of skirts and shirts left. How many shirts were there in the shop at first?
|
Shirts |
Skirts |
Before |
10 u |
7 u + 86 |
Change |
- 3 u |
- 86 |
After |
7 u |
7 u |
30% =
30100 =
310There were 77 more skirts than shirts at first. If another 77 shirts were added at first, the number of shirts and skirts would be the same.
10 u + 77 = 7 u + 86
10 u - 7 u = 86 - 77
3 u = 9
1 u = 9 ÷ 3 = 3
Number of shirts in the shop at first
= 10 u
= 10 x 3
= 30
Answer(s): 30