At a museum, there were
38 as many adults as children at first. After 29 adults left, there were 114 more children than adults remaining at a museum. How many children were at the museum?
| |
Adults |
Children |
| Before |
3 u |
8 u |
| Change |
- 29 |
|
| After |
3 u - 29 |
8 u |
In the end, the number of children was 114 more than the number of adults. If another 114 adults entered the museum, the number of children and adults would be the same.
8 u = 3 u - 29 + 114
8 u - 3 u = 114 - 29
5 u = 85
1 u = 85 ÷ 5 = 17
Number of children at first
= 8 u
= 8 x 17
= 136
Answer: 136
