Mr Lu paid a total of $100 for seven adult and two child tickets. If a child ticket was
23 of the price of an adult ticket, what was the price of an adult ticket?
|
Child ticket |
Adult ticket |
Total |
Number |
2 |
7 |
|
Value |
2 u |
3 u |
|
Total value |
4 u |
21 u |
25 u |
Price of 1 child ticket = 2 u
Price of 2 child tickets = 2 x 2 u = 4 u
Price of 1 adult ticket = 3 u
Price of 7 adult tickets = 7 x 3 u = 21 u
Total cost of the tickets
= 4 u + 21 u
= 25 u
25 u = 100
1 u = 100 ÷ 25 = 4
Price of a child ticket
= 2 u
= 2 x 4
= $8
Answer(s): $8