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 Mathematics question

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

Answer: (D)

Question ID VK-035713