At a theme park, there were
25 as many adults as children at first. After 45 adults left, there were 141 more children than adults remaining at a theme park. How many children were at the theme park?
| |
Adults |
Children |
| Before |
2 u |
5 u |
| Change |
- 45 |
|
| After |
2 u - 45 |
5 u |
In the end, the number of children was 141 more than the number of adults. If another 141 adults entered the theme park, the number of children and adults would be the same.
5 u = 2 u - 45 + 141
5 u - 2 u = 141 - 45
3 u = 96
1 u = 96 ÷ 3 = 32
Number of children at first
= 5 u
= 5 x 32
= 160
Answer: 160
