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. SN1330 - QI11
S(19) → Q(17) [-2]
N(14) → I(9) [-5]
113 – 1 = 1331 – 1 = 1330
2. MP999 - KK10
M(13) → K(11) [-2]
P(16) → K(11) [-5]
103 – 1 = 1000 – 1 = 999
3. TC728 - RX9
T(20) → R(18) [-2]
C(3) → X(24) [-5]
93 – 1 = 729 – 1 = 728
4. BW513 - ZR8
B(2) → Z(26) [-2]
W(23) → R(18) [-5]
83 – 1 = 512 – 1 = 511 ≠ 513
Option 4 is different