In the following question, four letter-number pairs are given. The letter-number on the left side of (–) is related to the letter-number on the right side of (–) with some Logic/Rule/Relation. Three pairs are similar on the 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 number 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)
Show answer & explanation
Correct answer: D
Explanation
Analyze the Number Logic:
Look at the relationship between the number on the left and the number on the right for each pair:
Option 1: 432÷2 = 216(The second number is half of the first)
Option 2: 504÷2 = 252(The second number is half of the first)
Option 3: 386÷2 = 193(The second number is half of the first)
Option 4: 290÷2 = 145(The pair is DP155, not 145)
Analyze the Letter logic:
Option 1: X (+2) → Z|R (+3) → U
Option 2: F (+2) →H | N (+3) →Q
Option 3: T (+2) → V | C (+3) → F
Option 4: B (+2) →D | M (+3) → P
The letter pattern (+2, +3) is consistent across all options.
While the letter logic holds for all options, the number logic fails for Option 4.
In Option 4:
should be 145, but the given value is 155.
Therefore, the odd one out is 4) BM290 - DP155.
Hence, the correct answer is option (4).