A mathematical question:

In a job there are 50 candidate 24 With MBA degree 30 with 5 years experience and 5 have nither MBA or Experience . Then how many candidate have both MBA and 5 years experience?

n(MBA)=24
n(5 years experience)=30
n(neither MBA nor experience) =5
Total candidates =50=n(MBA)Un(5 years experience)Un(neither MBA nor experience) − n(MBA and 5 years experience)
50 =24+30+5− n(MBA and 5 years experience)
n(MBA and 5 years experience)=24+30+5−50= 9

A = MBA, B = 5 years experience

P(A or B) = 50 - 5 = 45

45 = P(A) + P(B) - P(A & B) = 24 + 30 - P(A & B) , so

P(A & B) = (24+30) - 45 = 9 <------

50-5 = 45
24+30 =54
54-45 =9

ANSWER: 9