To solve this problem you must apply the proccedure shown below:
1. You can make the following expression, where [tex]O[/tex] is the orange picks and [tex]G[/tex] is the green picks:
[tex]O+G=25[/tex]
2. You have that there are 3 orange picks gor every 2 green, therefore:
[tex][tex]\frac{3}{2} =\frac{O}{G}\\ G=\frac{2}{3}O[/tex][/tex]
3. Substitute [tex]G[/tex] into the first equation and solve for [tex]O[/tex]:
[tex]O+\frac{2}{3}O=25\\ \frac{5}{8}O=25\\ O=15[/tex]
The answer is: There are 15 orange.
