Some visitors paid a total of $426 for entrance tickets to a theme park. The entrance ticket for a child cost $3. The entrance ticket for an adult cost 3 times as much. If there were 14 more adults than children, how many of the visitors were
- children?
- adults?
|
Adults |
Children |
Total |
Number |
1 u + 14 |
1 u |
|
Value |
$9 |
$3 |
|
Total value |
9 u + 126 |
3 u |
$426 |
(a)
Cost of an adult ticket
= 3 x 3
= $9
Cost of all the adult tickets
= 9(1 u + 14)
= 9 u + 126
Total cost of the tickets
= 9 u + 126 + 3 u
= 12 u + 126
12 u + 126 = 426
12 u = 426 - 126
12 u = 300
1 u = 300 ÷ 12 = 25
Total number of children
= 1 u
= 25
(b)
Total number of adults
= 1 u + 14
= 25 + 14
= 39
Answer(s): (a) 25; (b) 39