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
Option 1
AH720 → FN1090
Alphabet position:
A → F = +5
H → N = +6
Number change:
720 → 1090
1090 − 720 = +370
Option 2
EM640 → JS1010
E = 5 → J = 10 (+5)
M = 13 → S = 19 (+6)
Number:
640 → 1010
1010 − 640 = 370
Option 3
TF810 → YL1180
T = 20 → Y = 25 (+5)
F = 6 → L = 12 (+6)
Number:
810 → 1180
1180 − 810 = 370
Option 4
VH530 → AM900
The transformations V → A and H → M do not obey the (+5, +6) rule.
Therefore, option 4 is different.