In the following question, four number pairs are given. In each pair the number on left side of (–) is related to the number of the right side of (–) with some Logic/Rule /Relation. Three pairs are similar on 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 numbers 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)

This question was previously asked in
SSC CHSL Tier-I Exam 2022 Official Paper (Held On: 09 March, 2023 Shift 4)
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  1. 14 – 12
  2. 15 – 13
  3. 20 – 18
  4. 25 – 19

Answer (Detailed Solution Below)

Option 4 : 25 – 19
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Detailed Solution

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The logic followed here is:

Option 1) 14 – 12 → The difference between the numbers is 14 - 12 = 2.

Option 2) 15 – 13 → The difference between the numbers is 15 - 13 = 2.

Option 3) 20 – 18 → The difference between the numbers is 20 - 18 = 2.

Option 4) 25 – 19 → The difference between the numbers is 25 - 19 = 6.

So, the pair 4) 25 – 19 does not follow the same pattern as the other pairs and is the odd one out.

Hence, the correct answer is "Option 4".

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