Question : Directions: In the following question, four number pairs are given. In each pair, the number on the left side of (–) is related to the number on the right side of (–) with some Logic/Rule/Relation. Three pairs are similar based on the 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 numbers into their 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.)
Option 1: 21 – 1020
Option 2: 17 – 1006
Option 3: 11 – 1010
Option 4: 23 – 1022
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Correct Answer: 17 – 1006
Solution :
Let's check each option –
First option:
21 – 1020; 1020 – 21 = 999
Second option:
17 – 1006; 1006 – 17 = 989 ≠ 999
Third option:
11 – 1010; 1010 – 11 = 999
Fourth option:
23 – 1022; 1022 – 23 = 999
So, only the second option doesn't follow the same pattern as followed by the given set of numbers. Hence, the second option is correct.
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