Q) For some integer q , every odd integer is of the form
1) q
2) q+1
3) 2q
4) 2q+1
Answer : Option 4
Every even integer is represented by 2q
if 1 is added to any even integer , it gives an odd integer
so we can say that , for any integer ' q ' every odd integer is of the form 2q + 1
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