Question

Find the 8th term in the GP : 3, 9, 27, ....

• A. 2187
• B. 1458
• C. 6561
• D. 8748

Answer 1

Answer:

C. 6561

$a=3, r = 9/3=3$

$a_n=ar^{(n-1)}$

$a_8=3\times3^7$

$=6561$