At a stadium, there were
35 as many adults as children at first. After 76 adults left, there were 148 more children than adults remaining at a stadium. How many children were at the stadium?
|
Adults |
Children |
Before |
3 u |
5 u |
Change |
- 76 |
|
After |
3 u - 76 |
5 u |
In the end, the number of children was 148 more than the number of adults. If another 148 adults entered the stadium, the number of children and adults would be the same.
5 u = 3 u - 76 + 148
5 u - 3 u = 148 - 76
2 u = 72
1 u = 72 ÷ 2 = 36
Number of children at first
= 5 u
= 5 x 36
= 180
Answer: 180