There were 72 more windbreakers than sweaters in a shop. After 69 windbreakers and 20% of the sweaters were sold, there were an equal number of windbreakers and sweaters left. How many sweaters were there in the shop at first?
|
Sweaters |
Windbreakers |
Before |
5 u |
4 u + 69 |
Change |
- 1 u |
- 69 |
After |
4 u |
4 u |
20% =
20100 =
15There were 72 more windbreakers than sweaters at first. If another 72 sweaters were added at first, the number of sweaters and windbreakers would be the same.
5 u + 72 = 4 u + 69
5 u - 4 u = 69 - 72
1 u = -3
1 u = -3 ÷ 1 = -3
Number of sweaters in the shop at first
= 5 u
= 5 x -3
= -15
Answer(s): -15