In the following question, four number pairs are given. In each pair the number on left side of ( – ) is related to the number of the right side of ( – ) with some Logic / Rule / Relation. Three pairs are similar on basis of same Logic / Rule / Relation. Select the odd one out from the given alternatives. ( NOTE: Operations should be performed on the whole numbers, without breaking down the numbers into its constituent digits. E.g.13 – Operations on 13 such as adding / subtracting / multiplying etc. to 13 can be performed. Breaking down 13 into 1 and 3 and then performing mathematical operations on 1 and 3 is not allowed )