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
1) SD206 → PX617
S → P (−3), D →X (+20)
206 × 3 = 618
618 − 1 = 617
2) MB194 → JV581
M → J (−3), B → V (+20)
194 × 3 = 582
582 − 1 = 581
3) LT187 → IN560
L → I (−3), T → N (+20)
187 × 3 = 561
561 − 1 = 560
4) FS313 → CO938
F → C (−3), S → O (−4, not +20)
313 × 3 = 939
939 − 1 = 938
Option 4 is different