The average salary of

Question

The average salary of all the workers in a workshop is Rs. 8000. The average salary of 7 technicians is Rs. 12000

and the average salary of the rest is Rs 6000. The total number of workers in the workshop :

Options:

A . 20

B . 21

C . 22

D . 23

Answer: Option B

Let the total number of workers be `x`. Then,

8000`x` = ( 12000 x 7) + 6000(`x` - 7) `hArr` 2000`x` = 42000 `hArr` `x` = 21

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