At the trampoline park, there were 15 as many boys as girls and 34 as many adults as children. If there were 21 more adults than boys at the trampoline park, find the total number of people at the trampoline park.
| Adults |
Children |
Total |
| 3x3 |
4x3 |
7x3 |
| |
Boys |
Girls |
|
| |
1x2 |
5x2 |
|
| 9 u |
2 u |
10 u |
21 u |
Number of children is the combined repeated identity. Make the number of children the same. LCM of 6 and 4 is 12.
Number of more adults than boys
= 9 u - 2 u
= 7 u
7 u = 21
1 u = 21 ÷ 7 = 3
Total number of people
= 21 u
= 21 x 3
= 63
Answer(s): 63
