A certain school has 300 students, 142 of whom are boys. It has 30 teachers, 12 of whom are men. What percent of the total number of students and teaachers in the school is female?

Number of students in school = 300


Number of boys = 142


Number of girls = 300 – 142 = 158


Number of teachers in school = 30


No. of male teachers = 12


No. of female teachers = 30 – 12 = 18


Total no. of students and teachers = 300+30 = 330


Total numbers of females = 158+18 = 176


Percentage of females in school =


17