Question

A factory has 4 department in which 24, 15, 10 and 31 employees are working. The average wages of employees in their department are Rs 160, Rs 180, Rs 175 and Rs 170. What is the average wage of all the employees of the factory?

Answer 1

Department -1-

Number of employee $=24$

salary= $Rs.160$

Department-2-

Number of employee $=15$

salary $=Rs.180$

Department-3-

Number of employee $=10$

salary $=Rs.175$

Department-4-

Number of employee $=31$

salary $=Rs.170$

Average salary $=\frac{(24\times 160)+(15\times 180)+(10\times 175)+(31\times 170)}{24+15+10+31}$

$=169.5$