Published by:
CGP EDU Academic Team
Published on: August 13, 2026
The sum of infinite series of a GP is 4 & the sum of cubes of these terms is 192, then common ratio is-
Text Solution
Verified by ExpertsThe correct answer is:
C
∴ 
= 4 ⇒ a = 4(1 – r)
& 
= 192 ⇒ 
= 192 ⇒ 
= 3
⇒ 1 + r 2 – 2r = 3 + 3r + 3r 2 ⇒ 2r 2 + 5r + 2 = 0
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