SOLUTION: If n represents an odd number, which of these is an even number? a)4n + 1 b) 2n -1 c) 3n - 2 d) 3n +1

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Question 275525: If n represents an odd number, which of these is an even number?
a)4n + 1 b) 2n -1 c) 3n - 2 d) 3n +1
Answer by checkley77(12844) About Me  (Show Source):
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a)4n + 1 b) 2n -1 c) 3n - 2 d) 3n +1
Answer is d).
Proof:
4*1+1=4+1=5 odd
2*1-1=2-1=1 odd
3*1-2=3-2=1 odd
3*1+1=3+1=4 even.