Select the odd group of numbers. (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)

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SSC CGL 2022 Tier-I Official Paper (Held On : 01 Dec 2022 Shift 3)
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  1. (92 –72 –52)
  2. (76 –56 –36)
  3. (98–78 –56)
  4. (88 –68 –48)

Answer (Detailed Solution Below)

Option 3 : (98–78 –56)
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Detailed Solution

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The logic followed here is : (1st number - 2nd number) = (2nd number - 3rd number)

So,

  • Option - (1) : (92 –72 –52)

​92 - 72 = 72 - 52

20 = 20 (LHS = RHS)

  • Option - (2) : (76 –56 –36)

​76 - 56 = 56 - 36

20 = 20 (LHS = RHS)

  • Option - (3) : (98–78 –56)

​98 - 78 = 78 - 56

20 ≠ 22 (LHS ≠ RHS)

  • Option - (4) : (88 –68 –48)

​88 - 68 = 68 - 48

20 = 20 (LHS = RHS)

Hence, "Option - (3)" is the correct answer.

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