Study the given pattern carefully and select the number that can replace the question mark (?) in it.

(6, 4, 6)

(18, 9, 13)

(8, 6, ?)

(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 CGL 2023 Tier-I Official Paper (Held On: 17 Jul 2023 Shift 1)
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  1. 8
  2. 14
  3. 4
  4. 6

Answer (Detailed Solution Below)

Option 4 : 6
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SSC CGL Tier 1 2025 Full Test - 01
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Detailed Solution

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The logic followed here is:

Logic: (First number - Second number) + 4 = Third number

  • (6, 4, 6) → (6 - 4) + 4 = 2 + 4 = 6
  • (18, 9, 13) → (18 - 9) + 4 = 9 + 4 = 13

Similarly,

  • (8, 6, ?) → (8 - 6) + 4 = 2 + 4 = 6

Hence, '6' is the correct answer.

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