Out of first 45 natural numbers, one number is selected at random. The probability that it is either an even number or a prime number is ?  Pick:
A) 17/45  B) 7/45  C) 17/9  D) 7/9  E) 17/27
n(S) = 45   n(Even no) = 22= n(E)   n(Prime no) = 14 = n(P)   P(EᴜP)   = 22/45 + 14/45 - 1/45   = 35/45=7/9   Answer:7/9
<result>D</result>
Out of first 45 natural numbers, one number is selected at random. The probability that it is either an even number or a prime number is ?