If the coefficients of three consecutive terms in the expansion of (1+x)ⁿ are in the ratio 1: 5: 20, then the coefficient of the fourth term is

Binomial Theorem and Its Simple Applications: JEE Main 2023 Mathematics question

JEE Main 2023 · 8 Apr, Morning shift · Q3010

JEE Main 20238 Apr, Morning shiftMathematicsMediumBinomial Theorem and Its Simple Applications131× since 2002

If the coefficients of three consecutive terms in the expansion of

(1+x)^{n}

are in the ratio

1: 5: 20

, then the coefficient of the fourth term is

JEE Main 2023 · 8 Apr, Morning shift · Q3010

JEE Main 20238 Apr, Morning shiftMathematicsMediumBinomial Theorem and Its Simple Applications131× since 2002

If the coefficients of three consecutive terms in the expansion of

(1+x)^{n}

are in the ratio

1: 5: 20

, then the coefficient of the fourth term is