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 *
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Let the rest of the workers be x.
The total salary of all the workers = average salary of all the workers × the total number of workers
The total number of workers = x + 7
Total salary = 8000(x + 7) = 8000x + 56000
Total salary for the technicians = 7 × 12000 = 84000
Total salary for the rest of the workers is = 6000x
Total salary of all the workers = total salary of the technicians + total salary of other workers
= 84000 + 6000x
84000 + 6000x = 8000x + 56000
84000 - 56000 = 8000x - 6000x
28000 = 2000x
x = 28000/2000
x = 14
The total number of workers = 14 + 7 = 21 workers
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