There were 87 more windbreakers than blouses in a shop. After 99 windbreakers and 10% of the blouses were sold, there were an equal number of windbreakers and blouses left. How many blouses were there in the shop at first?
|
Blouses |
Windbreakers |
Before |
10 u |
9 u + 99 |
Change |
- 1 u |
- 99 |
After |
9 u |
9 u |
10% =
10100 =
110There were 87 more windbreakers than blouses at first. If another 87 blouses were added at first, the number of blouses and windbreakers would be the same.
10 u + 87 = 9 u + 99
10 u - 9 u = 99 - 87
1 u = 12
1 u = 12 ÷ 1 = 12
Number of blouses in the shop at first
= 10 u
= 10 x 12
= 120
Answer(s): 120