Question

The product of the predecessor and successor of an even natural number is

• A. an odd number
• B. an even number
• C. divisible by $2$
• D. none of these

Answer 1

The correct option is A

an odd number

The product of the predecessor and successor of an even natural number is an odd number.

Example: Even natural number = $2$

The predecessor of $2=$ $2-1=1$

The successor of $2$ $=2+1=3$

Product $=1\times 3=3$

∴The correct option is A.