Answer:
50
Step-by-step explanation:
5th term=a+4d
10th term=a+9d
15th term=a+14d
since
5th term=25 and the 15th term=75
so we find the value of unknown 'd' with is the common difference
a+4d=25
a+14d=75
-10d=-50
d=5
after finding the value of d we can now find the value of 'a'
a+4(5)=25
a=5
hence the 10th term can be obtained
a+9d
5+9(5)=50
