The average salary of the employees in a office is Rs.120/month.The avg salary of officers is Rs.420 and of non officers is Rs 110. If the no.of officers is 15,then find the No of nonofficers in the office.	Pick:
A) 400	B) 420	C) 430	D) 450	E) 510
Let no. of non- officers be x   15 * 420 + x * 110 = (x + 15) 120   x = 450   450
<result>D</result>
The average salary of the employees in a office is Rs.120/month.The avg salary of officers is Rs.420 and of non officers is Rs 110. If the no.of officers is 15,then find the No of nonofficers in the office.