[JEE Main 2013] the coefficients of three consecutive terms of 1 x n 5 are in the
The coefficients of three consecutive terms of $(1+x)^{n+5}$ are in the ratio $5:10:14$. Then $n=$ ____
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VAVidaara Admin
✓ Vidaara Team
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· 2d ago
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Answer: $n=6$.
With $N=n+5$: $\frac{N-r+1}r=2$ and $\frac{N-r}{r+1}=\frac75$ give $N=11$, so $n=6$.
JEE Main 2013 · Binomial Theorem — verified solution by the Vidaara Team.
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