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: B
Explanation
1. 120LD – 11OJ
(112)-1 = 121-1 = 120
LO[+3]
DJ[+6]
2. 170MR – 13PX
(132)-1 = 169+1 = 170
MP[+3]
RX[+6]
3. 288CG - 17FM
(172)-1 = 289-1 = 288
CF[+3]
GM[+6]
4. 224KB - 15NH
(152)-1 = 225-1 = 224
KN[+3]
BH[+6]
Options 170MR – 13PX different.