Let the price of an adult ticket is x and a child ticket is y .
from the question ,
![6x + 2y = 124 \: \: ...(i) \\ \\ 3x + 5y = 100 \: \: ...(ii)](https://img.qammunity.org/2023/formulas/mathematics/college/v5l6ppbu58n57xtjaeaikmidk90m6csxky.png)
Multiply 2 in eq (ii)
![6x + 10y = 200 \: \: ...(iii)](https://img.qammunity.org/2023/formulas/mathematics/college/dpn60v6jzagckgtnwtm5knmhzhdw9cp87g.png)
On adding eq (iii) and (i)
![6x + 10y = 200 \\ \\ 6x + 2y = 124](https://img.qammunity.org/2023/formulas/mathematics/college/5lv1ff8c5p9lxdp8g4vtbu9hznbok49kmt.png)
we get ,
![8y = 76 \\ \\ y = (76)/(8) \\ \\ y = 9.5](https://img.qammunity.org/2023/formulas/mathematics/college/kbohcl1uh0osif5t9sznc89rwwjhdva559.png)
putting y in eq (i)
![6x + 2y = 124 \\ \\ 6x + 2 * 9.5 = 124 \\ \\ 6x + 19 = 124 \\ \\ 6x = 124 - 19 \\ \\ 6x = 105 \\ \\ x = (105)/(6) \\ \\ x = 17.5](https://img.qammunity.org/2023/formulas/mathematics/college/9ejdajsnaxltn2qyjjoaq8jv7xvpe8gg95.png)
The value of x = 17.5 and y = 9.5
Hence , The price of an adult ticket is 17.5 and the price of a child ticket is 9.5 .