Answer:
[tex]3[/tex]
Step-by-step explanation:
4th term+5th term = [tex]25[/tex]
5th term = [tex]x[/tex]
4th term = [tex]11[/tex]
[tex]11+x=25[/tex]
[tex]x=25-11[/tex]
[tex]x=14[/tex]
5th term= [tex]14[/tex]
Common difference = 5th term - 4th term
[tex]14-11[/tex]
[tex]=3[/tex]