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 the (-) 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. Eg.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)
Which of the following letter-clusters will replace the question mark (?) and complete the following letter-cluster series?
LE, OJ, UO, DT, ?
Select the option that is related to the fifth letter-cluster in the same way as the second letter-cluster is related to the first letter-cluster and the fourth letter-cluster is related to the third letter-cluster.
GAIN: HBKP :: ACHE : BDJG :: CAKE : ?