At a tourist attraction, there were
27 as many adults as children at first. After 68 adults left, there were 123 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 |
- 68 |
|
After |
2 u - 68 |
7 u |
In the end, the number of children was 123 more than the number of adults. If another 123 adults entered the tourist attraction, the number of children and adults would be the same.
7 u = 2 u - 68 + 123
7 u - 2 u = 123 - 68
5 u = 55
1 u = 55 ÷ 5 = 11
Number of children at first
= 7 u
= 7 x 11
= 77
Answer: 77