Question

The average salary of all the workers in a workshop is Rs. 8,000 / -. The average salary of 7 technicians is Rs. 12,000 / - and the average salary of the rest is Rs. 6,000 / - The total number of the workers in the workshop is A 20 B 21 C 22 D 23​

Answer 1

Answer:

B.21

Step-by-step explanation:

total salary = total workers*average salary

Let total salary of technicians be x

and Total salary of remaining be y

total workers = x+y

let total workers = z

• x= 7*12000=84000

• y=600(z-7)

and x+y=8000*z

8000z=84000+6000z-42000

z=21