Source: Exemplar

Find the odd one out of the four options given below:

Options

Option A

(–3, –6)

Option B

(+1, –10)

Option C

(–2, –7)

Option D is correct

(–4, –9)

Explanation

All of these pairs i.e. (–3, –6); (+1, –10); (–2, –7) give same answer on adding, whereas – 4 + (–9) = –13, gives a different answer. So, odd one out is (–4, –9).