The average salary of all the workers in a workshop is Rs.8000. The average salary of 7 technicians is Rs.14000 and the average salary of the rest is Rs.6000. The total number of workers in the workshop is	Choose the most appropriate option:
A) 20
B) 21
C) 22
D) 23
E) 28
Solution   Let the toatl number of workers be x.   Then 8000x=(14000 x 7) + 6000 (x -7)   x= 28.   Answer 28
<result>E</result>
The average salary of all the workers in a workshop is Rs.8000. The average salary of 7 technicians is Rs.14000 and the average salary of the rest is Rs.6000. The total number of workers in the workshop is