Question

The difference between successor and predecessor of any number is

• A. $0$
• B. $1$
• C. $2$
• D. None of these

Answer 1

Answer: (C)

Let the number is $n$

Then the successor of the number = $n+1$

and the predecessor of the number = $n-1$

Difference $=n+1-(n-1)$

$=n+1-n+1$

$=2$