The average salary of all the workers in a workshop is Rs.8000. The average salary of 7 technicians is Rs.8000 and the average salary of the rest is Rs.6000. The total number of workers in the workshop is  Options:
A) 20	B) 21	C) 22	D) 7	E) 24
Solution   Let the toatl number of workers be x.   Then 8000x=(8000 x 7) + 6000 (x -7)   x= 7.   Answer 7
<result>D</result>
The average salary of all the workers in a workshop is Rs.8000. The average salary of 7 technicians is Rs.8000 and the average salary of the rest is Rs.6000. The total number of workers in the workshop is