Question

A certain school has 120 teachers. If this constitutes 30% of its work force. Find the number of employees in the school

Answer 1

let the total number of employees be x
30% of total employees = 30% of x = 30/100 x = $\frac{3x}{10}$

ATQ
$\frac{3x}{10}$ = 120
x = $\frac{120*10}{3}$
x = 400
Therefore there are 400 employees in the school.