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
Second number = (First number + 2)²
1) AS16 – HZ324
16 + 2 = 18
18² = 324
2) PJ18 – RK400
18 + 2 = 20
20² = 400
3) UH20 – SF484
20 + 2 = 22
22² = 484
4) EW22 – DV676
If the same rule is applied:
22 + 2 = 24
24² = 576
But given that 676 = 26² (here +4 is used, not +2)
So it is different from the rest.
Odd pair: 4) EW22 – DV676