Any number can be rounded to the neaest million.
349
38249
249999
149
The largest 4 digit number that can be rounded off to 3000 is 3499. If 3499 is rounded to nearest thousand then we get 3000 but if we consider a number greater than 3499 then rounding off yields 4000. So, 3499 is the required number.
Rounded off to the nearest whole number it is 92
Rounded off to the nearest whole number it is 73
Any number can be rounded to the neaest million.
7499
349
38249
5499999
1549
5499
9.74999999999999999999.....
15499