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Question
Out of 15 consecutive numbers, 2 are chosen at random. The probability that they are both odds or both primes is -.
Options:
A .  10/17
B .  10/19
C .  46/105
D .  11/15
E .  Cannot be determined
Answer: Option E


There is no definite formula for finding prime numbers among 15 consecutive numbers. Hence the probability cannot be determined.



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