X no of bullets are shared by 3 people equally . and each fired 4 bullets then the sum of remaining bullets is equal to initially division value

Answer:

I think that 18 is right answer.

 total value : x

 value which three man is fired : 3*4 = 12

 initially division value : x/3

 remainder : x-12

 x-12 = x/3,  3x-36=x

so 18 is answer.

(I am not good at English. If my sentences is wrong, please fix it)