Question

The sum of the successor and the predecessor of ‘ten thousand’ is

• A. $10001$
• B. $19999$
• C. $20000$
• D. $11111$

Answer 1

The correct option is C

$20000$

Explanation for the correct option:

Option $C$: $20000$

The successor of a given whole number is a number $1$ more than the given number.

The successor of $10,000$$=10,000+1$

$=10,001$

The predecessor of a given whole number is a number $1$ less than the given number.

The predecessor of $10,000$$=10,000-1$

$=9999$.

The sum of the successor and the predecessor of ‘ten thousand’$=10001+9999$

$=20,000$.

Therefore, the sum of the successor and the predecessor of ‘ten thousand’ is $20,000$.

Hence, the correct option is option $C$.