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: 51624 – 42615
Option 2: 51678 – 87615
Option 3: 42675 – 57624
Option 4: 12311 – 11231
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Correct Answer: 12311 – 11231
Solution :
Let's check the options –
First option:
51624 – 42615; Reversing the digits of 51624 leads to 42615.
Second option:
51678 – 87615; Reversing the digits of 51678 leads to 87615.
Third option:
42675 – 57624; Reversing the digits of 42675 leads to 57624.
Fourth option:
12311 – 11231; Reversing the digits of 12311 leads to 11321 ≠ 11231
So, only the fourth option is different from the other three options. Hence, the fourth option is different.
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