At a stadium, there were
35 as many adults as children at first. After 47 adults left, there were 177 more children than adults remaining at a stadium. How many adults were at the stadium at first?
|
Adults |
Children |
Before |
3 u |
5 u |
Change |
- 47 |
|
After |
3 u - 47 |
5 u |
In the end, the number of children was 177 more than the number of adults. If another 177 adults entered the stadium, the number of children and adults would be the same.
5 u = 3 u - 47 + 177
5 u - 3 u = 177 - 47
2 u = 130
1 u = 130 ÷ 2 = 65
Number of adults at first
= 3 u
= 3 x 65
= 195
Answer: 195