Example 1 : Are the following statements true or false? Give reasons for your answers.
(i) Every whole number is a natural number.
(ii) Every integer is a rational number.
(iii) Every rational number is an integer
solution:- (i) wrong [because set of whole number= {0 , Natural number}]
set of natural number={1,2,3,4......................}
(ii) Right [because set of a rational number= {All natural number,all whole number,all negative of natural number,All fractional number,etc]
(iii)wrong [because set of integer= {negative of Natural number,0 , Natural number}]
set of a rational number= {All natural number,all whole number,all negative of natural number,All fractional number,etc]
