Verified Answer :

38, 496

In this
number in order to apply rounding off. We can analyse the morphology of the
digit from the order of value and hierarchy each number has in its position.

30, 000 =
Thirty thousands

8, 000=
eight thousands

400 = four
hundreds

90 = ninety

6 = six

To round
off to the nearest thousand, observe that 8, 000 is the value in the number
which is in the position of the thousand. Hence 38, 496. Note 4 is still in the
spectrum of 0-4 which is no change in number unlike 5-9. Therefore the number
is …38, 000