A certain school has 300 students, 142 of whom are boys. It has 30 tea

1.	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?
Answer» 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 \(=\frac{176}{330}\times100\) = \(\frac{160}{3}\)%

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?

Answer»

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 \(=\frac{176}{330}\times100\) = \(\frac{160}{3}\)%