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CGP EDU Academic Team
Published on: August 14, 2026
The coefficients of three consecutive terms of (1 + x) n+5 are in the ratio 5 : 10 : 14. Then n =
Text Solution
Verified by ExpertsThe correct answer is:
6
(6) n+5 C r–1 : n+5 C r : n+5 C r+1 = 5 : 10 : 14
⇒ 
& 
⇒ 
= 2 & 
⇒ 
& 
⇒ 3r = 
(r + 1) ⇒ r = 4
∴ n + 6 = 12 ⇒ n = 6
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