Of the 150 employees at company X, 80 are full-time, and 100 have worked at company X for at least a year. There are 20 employees at company X who aren’t full-time and haven’t worked at company X for at least a year. How many full-time employees of company X have worked at the company for at least a year?
.  Choose the correct choice:
A) 20	B) 30	C) 50	D) 80	E) 100
150 employees   80 are full-time   100 have worked at company X for at least a year   20 employees at company X who aren’t full-time and haven’t worked at company X for at least a year.   How many full-time employees of company X have worked at the company for at least a year?   150-80= 
<gadget id="calculator">150-80</gadget>
<output>70</output>
70 employees not full time   70-20= 
<gadget id="calculator">70-20</gadget>
<output>50</output>
50 employees not full time who worked over a year   100 employees have worked at company X for at least a year-50 employees not full time who worked over a year= 50 full-time employees of company X have worked at the company for at least a year   ANSWER:50
<result>C</result>
Of the 150 employees at company X, 80 are full-time, and 100 have worked at company X for at least a year. There are 20 employees at company X who aren’t full-time and haven’t worked at company X for at least a year. How many full-time employees of company X have worked at the company for at least a year?
.