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mlane25269
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Is n an odd numbermlane25269 wrote:Can someone explain? Thanks!
Statement I
n=2k+1
Anything multiplied by 2 will yield an even integer. Therefore, n will always be odd in this case. Always remember the rules of odd and even
even+even = even
odd+even = odd
Sufficient.
Statement II
2n + 1 is odd
In this case n could be odd as well as even. The above condition will always result in an odd integer irrespective of weather n is odd or even.
Not Sufficient.
Hence A is the answer.
