The average salary of all the workers in a workshop is Rs. 9000. The average salary of 6 technicians is Rs. 12000 and the average salary of the rest is Rs. 6000. The total number of workers in the workshop is?	Select:
A) 23  B) 21  C) 52  D) 56  E) 12

Rationale: "let the total number of workers be x . then , 9000 x = ( 12000 * 6 ) + 6000 ( x - 6 ) = > 3000 x = 36000 = x = 12 . answer : e"
Answer: E