Question

What's 15 rounded to the nearest whole number

Answer 1

The next larger whole number is 16.

The next smaller whole number is 14.

Nether of those is any closer to 15 than 15 already is.

So the whole number nearest to 15 is 15 itself.

Answer 2

15

Explanation:

15 itself is a whole number

hence 15 rounded to the nearest whole number is still 15.