Question

13. (4) Let there are ( x ) non-technicians in the factory. Then, according to the question, ( (15 times 12000+x times 3750)=(15+x) times 6000 )
( Rightarrow quad 180000+3750 x=90000+6000 x )
( Rightarrow )
[
begin{aligned}
2250 x &=90000
x &=40
end{aligned}
]
( Rightarrow )
Thus, total number of workers in the factory is ( 40+15, ) i.e. 55

# 13. The average salary of workers of a factory is 6000. The average salary of 15 technicians is 12000 and that of non-technicians is 3750. Find the total number of workers in the factory. (1) 40 (2) 25 (3) 35 (4) None of these

Solution