Answer: Option D
:
D
To round off a number to the nearest hundred, we checkthe last two digits of the number.
If the last two digits form a numberless than 50, we round down the number to the nearest lower multiple of 100.
If the last two digits form50 or morethan 50, we round upthe number to the nearest highermultiple of 100.
To round off30982 to the nearest hundred, our options are either 30900 or 31000.
Since82 is greater than 50, 30982 isrounded off to 31000.