Answer:
130
Step-by-step explanation:
Given,
AP : 18, 26, 34, ...
To find : 15th term
15th term is t15.
AP : 18, 26, 34, ...
Here,
a = 18
d = 26 - 18 = 8
Formula : -
an = a + ( n - 1 )d
t15
= 18 + ( 15 - 1 )8
= 18 + 14 ( 8 )
= 18 + 112
= 130
Therefore, the 15th term is 130.
