There were 69 more coats than sweaters in a shop. After 77 coats and 20% of the sweaters were sold, there were an equal number of coats and sweaters left. How many sweaters were there in the shop at first?
|
Sweaters |
Coats |
Before |
5 u |
4 u + 77 |
Change |
- 1 u |
- 77 |
After |
4 u |
4 u |
20% =
20100 =
15There were 69 more coats than sweaters at first. If another 69 sweaters were added at first, the number of sweaters and coats would be the same.
5 u + 69 = 4 u + 77
5 u - 4 u = 77 - 69
1 u = 8
1 u = 8 ÷ 1 = 8
Number of sweaters in the shop at first
= 5 u
= 5 x 8
= 40
Answer(s): 40