Question

The sum of an Infinite geometric series is 4 and the sum of the cubes of the terms of the same GP is 192. The Common Ratio of the original geometric series is :

• A. $\frac 12$
• B. $-\frac 12$
• C. $\frac 14$
• D. $-\frac 14$

Answer 1

Answer: (B)

$-\frac 12$

Answer 2

The correct option is (B): $-\frac 12$