Of 30 applicants for a job, 13 had at least 4 years' experience, 18 had degrees, and 3 had less than 4 years' experience and did not have a degree.How many of the applicants had at least 4 years' experience and a degree? Options:
A) 14
B) 13
C) 9
D) 6
E) 5
D. 6   30 - 3= 
<gadget id="calculator">30 - 3</gadget>
<output>27</output>
27   27 - 13 - 18= -6   Then 6 are in the intersection between 4 years experience and degree.   Answer 6
<result>D</result>
Of 30 applicants for a job, 13 had at least 4 years' experience, 18 had degrees, and 3 had less than 4 years' experience and did not have a degree.How many of the applicants had at least 4 years' experience and a degree?