What is the nth term of the progression 27, 9, 3,……?

What is the nth term of the progression 27, 9, 3,……?
  • A.
    27(frac{1}{3}) n – 1
  • B.
    3n + 2
  • C.
    27 + 18(n – 1)
  • D.
    27 + 6(n – 1)
Correct Answer: Option A
Explanation

Given 27, 9, 3,……this is a G.P
r = (frac{9}{27})
= (frac{1}{3})
T = arn – 1
= 27(frac{1}{3}) n – 1

You May Also Like