State whether the following statements are true or false. Give reasons for your answers.
(i) Every natural number is a whole number.
ANS: True, since the collection of whole numbers contains all natural numbers.
(ii) Every integer is a whole number.
ANS: False, as integers may be negative but whole numbers are always positive.
(iii) Every rational number is a whole number.
ANS: False, as rational numbers may be fractional but whole numbers may not be.
