Question

Consider two whole numbers a and b such that a is greater than b.

(i) Is a – b a whole number ? Is this result always true?

(ii) b-a a whole number ? Is this result always true?

Answer 1

Let us take a as 2 and has 1

(i) a – b = 2 – 1 = 1,

Yes, a – b is a whole number and the result will always remain the same.

(ii) b – a = 1 – 2 = -1

No, a – b can never be a whole number. Yes, the result always is true.