Answer:
The number belongs to:
Rational number.
Explanation:
Real number---
A real number is a number which is a value which is used to represent a distance on a real line.
It is divided into two categories--
1)
Rational Number--
A rational number is a number which is written in the form of p/q where p and q are integers and q is not equal to zero.
Also, the decimal representation of such a number is recurring or a terminating decimal.
2)
Irrational number--
A rational number is a number which could not be written in the form of p/q where p and q are integers and q is not equal to zero.
Also, the decimal representation of such a number is non-terminating and non-recurring decimal.
We are given a number as:
0.2782
The decimal number is terminating decimal.
Hence, the number is a rational number.
( It is not a whole number because the whole number do not exist in decimal.
They are numbers such as: {0,1,2,3,....}
and integers are the collection of positive and negative whole numbers)