Of the numbers given as options in the question, the nearest number to 5 is b, 5.3.
It is 28
The answer is 30
40 is a round number ?
28 to the nearest hundreds is zero.
It is 28 to the nearest ones.
27.81 rounded to the nearest whole number is 28.
It is 28
27.5 rounded to the nearest whole number is 28.
27.936 is, itself, a number and so it must be the nearest number to itself. Perhaps you are thinking of the nearest whole number (which is NOT the same thing), and that is 28.
The answer is 30
28.086 rounded to the nearest whole number = 28
It is 28.
40 is a round number ?
28 is already a whole number and no further rounding is possible.
2.80
28 to the nearest hundreds is zero.
It is 28 to the nearest ones.