Question

If 3n is an odd number which of the following is an even number?
A. 3n - 1
B. 3n + 2
C. 3n - 2
D.3n + 2n

Answer 1

Answer:

When an odd number is subtracted from an odd number it gives an even number. When an even number is subtracted from an odd number it gives an odd number. Hence, 3n-1 is even, 3n+2 is odd, 3n-2 is odd, 3n+2n is odd. Therefore, 3n-1 is an even number.

Answer 2

Answer:

3n-1

Step-by-step explanation:

3n-1 3n is an odd number which of the following is an even number?

A. 3n - 1