At a tourist attraction, there were
27 as many adults as children at first. After 73 adults left, there were 138 more children than adults remaining at a tourist attraction. How many children were at the tourist attraction?
|
Adults |
Children |
Before |
2 u |
7 u |
Change |
- 73 |
|
After |
2 u - 73 |
7 u |
In the end, the number of children was 138 more than the number of adults. If another 138 adults entered the tourist attraction, the number of children and adults would be the same.
7 u = 2 u - 73 + 138
7 u - 2 u = 138 - 73
5 u = 65
1 u = 65 ÷ 5 = 13
Number of children at first
= 7 u
= 7 x 13
= 91
Answer: 91