Answer:
1.68
Explanation:
1.68 to the nearest whole number is 1.68
If the first digit in the fractional part of 1.68 is less than 5 then we simply remove the fractional part to get the answer.
If the first digit in the fractional part of 1.68 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 6 and 6 is 5 or above. Therefore, we add 1 to the integer part and remove the fractional part to get 1.68 rounded to the nearest whole number as: 2