The average salary of all the workers in a workshop is Rs. 8000. The average salary of 7 technicians is Rs. 18000 and the average salary of the rest is Rs. 6000. The total number of workers in the workshop is: Select
A) 23 B) 19 C) 42 D) 20 E) 21
Let the total number of workers be x. Then,   8000x = (18000 * 7) + 6000(x - 7)   = 2000x = 84000   = x = 42.   ANSWER:42
<result>C</result>
The average salary of all the workers in a workshop is Rs. 8000. The average salary of 7 technicians is Rs. 18000 and the average salary of the rest is Rs. 6000. The total number of workers in the workshop is: