If the first digit in the fractional part of 24.3 is less than 5 then we simply remove the fractional part to get the answer.
If the first digit in the fractional part of 24.3 is 5 or above, then we add 1 to the integer part and remove the fractional part to get the answer.
The first digit in the fractional part is 3 and 3 is less than 5. Therefore, we simply remove the fractional part to get 24.3 rounded to the nearest whole number as:
