If C_r= ^ 25 C_r and C_0+5 C_1+9 C_2+ +(101) C_ 25 =2^ 25 k, then k is equal to

JEE Main Mathematics question

If and , then is equal to

Answer: 51

The term is , so the sum is . and $

Create a free account to read the complete working, and practise questions like this in a timed test.

Question ID VK-021360