Question

n is an odd number.
Which statements are true?
You must get them all correct to get any marks.
A: n - 1 is odd
B: n(n − 1) is odd
C: (n-1)? is odd D: 2 + 2 is odd
E: n(n-2) is odd F: (n - 2)2 is odd

Answer 1

Answer:

E: n(n-2) is odd F: (n - 2)2 is odd

Step-by-step explanation:

Odd numbers are numbers divisible by 2 [ 1, 3, 5, 7, 9 … ]

» Assume n is 3

${ \tt{n - 1 = 3 - 1 = 2 \: \{even \: number \}}} \\ { \tt{n(n - 1) = 2 \times 3 = 6 \: \{even \: number \}}} \\ { \tt{n(n - 2) = 3(3 - 2) = 3 \: \: \{odd \: number \}}}$