Of 30 applicants for a job, 14 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?
সমাধান
সঠিক উত্তর: Option E
set A : people with more than 4 years exp set B : people with degree
AUB = total - (less than 4 exp and no degree) AUB = 30-3=27
AUB = A + B - AiB AiB = 18+14-27 =5
