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Last updated date: 02nd Dec 2023
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# The following statement is true (T) or false (F)?$400$ is the predecessor of $399$.A). TrueB). False

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Hint: Predecessor is nothing but the very before term or the term that lies just before the given term and the successor is nothing but the very next term or the term that lies just after the given term.

Complete step-by-step solution:
It is given that, $400$ is the predecessor of $399$.
As we know, predecessor is nothing but the very before term or the term that lies just before the given term.
That is let us consider the list of numbers, $12,13,14,15,16,17,18,...$
Here $12$ is the predecessor of $13$, $13$ is the predecessor of $14$, $14$ is the predecessor of $15$, $15$ is the predecessor of $16$, $16$ is the predecessor of $17$ and $17$ is the predecessor of $18$.
Let us consider the same series, $12,13,14,15,16,17,18,...$
Here $13$ is the successor of $12$, $14$ is the successor of $13$, $15$ is the successor of $14$, $16$ is the successor of $15$, $17$ is the successor of $16$ and $18$ is the successor of $17$.
Now we have a clear knowledge of predecessor and successor. Let’s find the given statement is true or false.
It is given that, $400$ is the predecessor of $399$.
Let us consider the series, $397,398,399,400,401,402,...$
Clearly, we can see that $400$ is the predecessor of $401$ and $398$ is the predecessor of $399$.
Thus, the statement is incorrect.
Hence, option (a) True cannot be the correct answer, option (b) False is the correct answer.

Note: In a series of numbers, except the first term all other terms will have predecessor and except the last number every other term will have successor. Since, $400$ is greater than $399$(that is, $400 > 399$) therefore $400$ cannot be the predecessor of $399$.