Q2Single correct1 Mark4 Jan 2026

Let $a_1<a_2<\cdots<a_n$ be the list of all prime numbers less than $25$. $\text{Define } X_i = \frac{b_i}{a_i},$ where $b_i$ is the sum of all $a_k$ where $k$ ranges from $1$ to $n, \; k\neq i$. Let $B$ be the set of all integer-valued $X_i$. What is the smallest element of $B$?

A

1

B

19

C

11

D

17

E

23