The sum of the number of students that came in before Tom and the number of students that came in after him is $29 - 1 = 28$. The number of students that came in before Mike was $(28 + 6) \div 2 = 17$, so Mike was the eighteenth. 
$$29$$ students came into the classroom in turn. The number of students that came in before Mike was $$5$$ more than the number of students who came in after him. Which place did Mike come in? (Adapted from 2015 Math Kangaroo Problem, Level 3 - 4, Question \#13) 

$$11$$ 
$$12$$ 
$$16$$ 
$$17$$ 
$$18$$ 