The sum of n terms of an A.P. is 3n² + 5n, then 164 is its
A. 24th term
B. 27th term
C. 26th term
D. 25th term
Answers
Answered by
1
Answer:
b)27th term
Step-by-step explanation:
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Answered by
0
Answer:
Given :
Sum of n terms = 3n^2 + 5n
S1 = 8
S2 = 8 + x = 22
=> x = 14
S3 = 8 + 22 + x = 42
=> x = 12
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