Answer:
Step-by-step explanation:
When rounding to the nearest hundred, a number that is halfway between two hundreds will round up to the higher hundred.
For a number to round to 1500, it must be at least 1450 (because numbers from 1450 to 1499 round to 1500). However, as soon as we reach 1550, the number will round to 1600.
Therefore, the greatest whole number that rounds to 1500 when rounded to the nearest hundred is 1549.