Three of the following four groups of number-letters are alike in a certain way and thus form a group. Which is the one that does not belong to the group?

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  1. T 7 M
  2. B 10 R
  3. U 13 H
  4. J 16 Z

Answer (Detailed Solution Below)

Option 4 : J 16 Z
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Detailed Solution

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The logic followed here is:

Logic: First value - Third value = second value.

Option 1) T 7 M

⇒ T(20) - M(13) = 7.

Pattern follow.

Option 2) B 10 R

⇒ B(2) - R(18) = 10.

Pattern follow.

Option 3) U 13 H

⇒ U(21 - H(8) = 13.

Pattern follow.

Option 4) J 16 Z

⇒ J(10) - Z(26) = 11 ≠ 16.

Pattern doesn't follow.

Hence, the correct answer is "Option 4".

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