Question

If you have a finite geometric sequence, the first number is $2$ and the common ratio is $4$, what is the 3rd number in the sequence?

• A. $8$
• B. $16$
• C. $32$
• D. $64$

Answer 1

Answer: (C)

$32$

Given that first number is $2$ and the common ratio is $4$.
The general form of geometric progression is $a,ar,a{r}^2,a{r}^3$.
So, the third term of finite G.P. would be $2\times (4{)}^2=32$.