The answer will depend on the degree to which the number is rounded. Without any indication of that, it is not possible to answer the question sensibly.
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It is already rounded to 4 decimal places as 66.6666
1.0348m rounded to 4 significant numbers is 1.035m
Rounded to a whole number it is 4
4.05 rounded to the nearest whole number is 4
It is 7 when rounded to the nearest ones because .4 is less than .5