Question

12.) 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 is​

Answer 1

Answer:

Let total no. of workers be x.

Then, 8000 x = 7×12000+(x−7)×6000

=>x=42000/2000 = 21

Answer 2

Step-by-step explanation:

Let total workers be N

The number of technicians = 7

Number of remaining workers = N-7.

So,

• N(8000) = 7(12000) + (N-7)(6000)
• 8N = 84 + 6(N-7)
• 8N = 84 + 6N - 42
• 2N = 42
• N = 21

So the total number of workers = 21.

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