Answer:
<h3>The answer is option A</h3>
Explanation:
The new volume can be found by using the formula for Boyle's law which is

Since we are finding the new volume

From the question we have

We have the final answer as
<h3>3.10 L</h3>
Hope this helps you
As we know that here gun + bullet system is isolated from all other external force system
so here the momentum of system is always conserved
so we will say

here we know that




now we will have

by solving above equation we will have

The answer is 29.0576 m/s