Answer:
d=12
Step-by-step explanation:
The first term of an arithmetic sequence is i.e. a = 5
We are given that eleventh term is 125
Formula of nth term = [tex]a_n=a+(n-1)d[/tex]
Where a is the first term
n is the term no.
d is the common difference
Substitute n = 11
[tex]a_{11}=5+(11-1)d[/tex]
[tex]125=5+(11-1)d[/tex]
[tex]120=10d[/tex]
[tex]12=d[/tex]
Hence The common difference of the arithmetic sequence is 12
