Question

If the second term of a G.P. is 2 and the sum of its infinite

terms is 8, then its first term is-

• A. $\frac { 1 } { 2 }$
• B. $\frac { 1 } { 4 }$
• C. 2
• D. 4

Answer 1

Answer: (D)

4

Answer 2

Let a be the first term and r be the common ratio of G.P.

ar = 2 …(1); $\frac { a } { 1 - r }$ = 8 …(2)

By (1) and (2) a = 4