Question

If their was 12 friends and 13 friends got trapped how many is their now?

Answer 1

It is 0. I don't know if that was a joke or not.

If 12 friends came and 13 are trapped there will be 0 as all the 12 friends got trapped and maybe with a miracle, one more friend came and also got trapped.

Answer 2

Explanation:

This is confusing though:

12-13= -1 people and that means there are no people left or its impossible to have -1 person unless there is more friends.