A teacher surveyed 160 students to see how many students leave school during lunch. Here are the results of the survey: Out of the boys surveyed 0.125 leave school & 0.40625 stay at school. Of the girls surveyed, 0.1875 leave school and 0.28125 stay at school.

Approximately what percent of boys surveyed leave school during lunch?

a) 13%

b) 24%

c) 31%