Out of 15 consecutive numbers, 2 are chosen at random. The probability that they are both odds or both primes is ?  Choose one
A) 10/17
B) 10/19
C) 46/105
D) 11/15
E) Cannot be determined
Explanation:   There is no definite formula for finding prime numbers among 15 consecutive numbers. Hence the probability cannot be determined.   Cannot be determined)
<result>E</result>
Out of 15 consecutive numbers, 2 are chosen at random. The probability that they are both odds or both primes is ?