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) MW1032 – RB721
M → R [+5]
W → B [+5]
1032 − 721 = 311
2) NR1176 – SW865
N → S [+5]
R → W [+5]
1176 − 865 = 311
3) PT1284 – UY973
P → U [+5]
T → Y [+5]
1284 − 973 = 311
4) GH1302 – LM981
G → L [+5]
H → M [+5]
1302 − 981 = 321
Option 4 is different.