At a park, there were
25 as many adults as children at first. After 32 adults left, there were 113 more children than adults remaining at a park. How many children were at the park?
| |
Adults |
Children |
| Before |
2 u |
5 u |
| Change |
- 32 |
|
| After |
2 u - 32 |
5 u |
In the end, the number of children was 113 more than the number of adults. If another 113 adults entered the park, the number of children and adults would be the same.
5 u = 2 u - 32 + 113
5 u - 2 u = 113 - 32
3 u = 81
1 u = 81 ÷ 3 = 27
Number of children at first
= 5 u
= 5 x 27
= 135
Answer: 135
