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: C
Explanation
1) VD240 → AJ610
V → A (+5)
D → J (+6)
240 → 610 (+370)
2) LP310 → QV680
L → Q (+5)
P → V (+6)
310 → 680 (+370)
3) SK420 → XQ770
S → X (+5)
K → Q (+6)
420 → 770 (+350)
4) BH370 → GN740
B → G (+5)
H → N (+6)
370 → 740 (+370)
Therefore, the odd group = SK420 → XQ770