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Question

Three of the following four pairs have the same relationship between their elements as in the case of the pair BRIGHT: 24 and hence form a group. Which one does not belong to the group?

The correct answer is
SMART: 21

Analogy Logic: BRIGHT: 24 Relationship Puzzle

This question requires us to identify a specific pattern or relationship between the word and the number in the pair BRIGHT: 24. We then need to apply this same relationship to the other given pairs (SMART: 21, SHARP: 20, QUICK: 20, BRAINY: 24) and find the one pair that does *not* follow this rule. The pair that doesn't fit is the answer.

Analyzing the Base Pair: BRIGHT: 24

Let's first determine the relationship between the word BRIGHT and the number 24.

  • The word is BRIGHT.
  • We count the number of letters in the word BRIGHT. There are 6 letters: B, R, I, G, H, T.
  • The number associated with the word is 24.
  • We look for a connection between 6 (the letter count) and 24. A simple mathematical operation could be multiplication.
  • Let's test multiplying the letter count by 4: $6 \times 4 = 24$.
  • This calculation matches the number given in the pair. So, the potential relationship is: (Number of letters in the word) $\times$ 4 = Given Number.

Evaluating the Options Based on the BRIGHT: 24 Pattern

Now, we will check if the other pairs follow the same rule: (Number of letters $\times$ 4).

Option Pair Word Number of Letters Calculation (Letters $\times$ 4) Result Does it Match?
BRIGHT: 24 BRIGHT 6 $6 \times 4$ 24 Yes
SMART: 21 SMART 5 $5 \times 4$ 20 No (Expected 20, Got 21)
SHARP: 20 SHARP 5 $5 \times 4$ 20 Yes
QUICK: 20 QUICK 5 $5 \times 4$ 20 Yes
BRAINY: 24 BRAINY 6 $6 \times 4$ 24 Yes

Identifying the Odd Pair Out

From the table above, we can see that:

  • SHARP: 20 fits the pattern ($5 \times 4 = 20$).
  • QUICK: 20 fits the pattern ($5 \times 4 = 20$).
  • BRAINY: 24 fits the pattern ($6 \times 4 = 24$).
  • The pair SMART: 21 does not fit the pattern. The word SMART has 5 letters. According to the rule, the number should be $5 \times 4 = 20$. However, the pair provides the number 21.

Since three pairs (SHARP: 20, QUICK: 20, BRAINY: 24) follow the relationship (Number of letters $\times$ 4), and SMART: 21 does not, SMART: 21 is the pair that does not belong to the group.

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Important Questions from Odd-One Out & Analogy

  1. Identify the odd group:
  2. Four of the following five are alike in a certain way and hence form a group. Which is the one that does not belong to that group?
    1. ROSE: TQSC
    2. LION: NKOL
    3. BEAR: DAWT
    4. CAND: ECNB
    5. TIGER: VKGCP
  3. Which word is different from the rest?
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