Question

The product of the successor and predecessor of $999$ is $?$

Answer 1

• The next whole number of a given number is referred to as the successor of that number$.$
• To identify the successor of the provided number$,$ we shall add one to the supplied number$.$
• We have $999$ as the supplied number, hence we may acquire the successor of the given number by adding $1$ to it$.$

Successor of $999=999+1$

$=1000$

Therefore$,$ we will subtract $1$ from $999$ to get the predecessor of the number $999$.

Predecessor of $999$ is $=999-1$

$=998$

Their product $=998\times 1000$

$=998000$

Hence$,$ the product of the successor and predecessor of $999$ is $998000$