CAT 2023 Slot 2 QA · Question 20

Let both the series $a_1,a_2,a_3,\dots$ and $b_1,b_2,b_3\dots$ be in arithmetic progression such that the common differences of both the series are prime numbers. If $a_5=b_9,a_{19}=b_{19}$ and $b_2=0$, then $a_{11}$ equals