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Show that if n is an integer and n$3+5$ is odd, then n is even using

a proof by contradiction.

Rank the options below.

As n$3$ and $5$ are odd, their sum n$3+5$ should be even, but it is given to be odd. This is a contradiction.As n$3$ and $5$ are odd, their sum n$3+5$ should be even, but it is given to be odd. This is a contradiction. open choices for ranking

No answer

We know that the sum of two odd numbers is even.We know that the sum of two odd numbers is even. open choices for ranking

No answer

Therefore, our supposition was wrong; hence n is even.Therefore, our supposition was wrong; hence n is even. open choices for ranking

No answer

Suppose that n$3+5$ is odd and that n is odd.Suppose that n$3+5$ is odd and that n is odd. open choices for ranking

No answer

As n is odd, n$3$ is odd.