Question

Which of the following whole numbers does not have a predecessor?

• A. $10$
• B. $5$
• C. $1$
• D. $0$

Answer 1

The correct option is D

$0$

The predecessor of a whole number: If we subtract $1$ from the given whole number, we get its predecessor.

so

$\iff$ $10=1=9$ is a predecessor of a given number

$\iff$ $5-1=4$ is predecessor of a given number

$\iff$ $1-1=0$ is a predecessor of a given number

$\iff$$0-1=-1$ is not a predecessor of a given number

Hence, $0$ has no successor and no predecessor

Therefore , Option D is the correct answer.