There were 79 more windbreakers than sweaters in a shop. After 59 windbreakers and 40% 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 |
3 u + 59 |
| Change |
- 2 u |
- 59 |
| After |
3 u |
3 u |
40% =
40100 =
25There were 79 more windbreakers than sweaters at first. If another 79 sweaters were added at first, the number of sweaters and windbreakers would be the same.
5 u + 79 = 3 u + 59
5 u - 3 u = 59 - 79
2 u = -20
1 u = -20 ÷ 2 = -10
Number of sweaters in the shop at first
= 5 u
= 5 x -10
= -50
Answer(s): -50
