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Question

Find the missing number: 21 : 3 :: 574 : ?

This question was previously asked in
SSC CGL 2025 Tier 1 Question Paper (25-Sep-2025) (Shift 3)
The correct answer is
82

Finding the Missing Number

This question is a number analogy problem. We need to find the relationship between the first pair of numbers (21 and 3) and apply the same relationship to the second pair (574 and the missing number).

Analyzing the Relationship

Consider the first pair: 21 : 3.

  • We observe that 3 can be obtained by dividing 21 by 7.

    Calculation: $\frac{21}{7} = 3$

Applying the Relationship

Now, we apply the same division relationship to the second pair: 574 : ?.

  • We need to divide 574 by 7 to find the missing number.

    Calculation: $\frac{574}{7} = 82$

Conclusion

The missing number is 82. This corresponds to Option 3.

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Important Questions from Analogy

  1. Select the option that is related to the third number in the same way as the second number is related to the first number.

    12 : 60 :: 16 : ?

  2. Select the option that is related to the third number in the same way as the second number is related to the first number.

    16 : 144 :: 28 : ?

  3. Select the set in which the numbers are related in the same way as are the numbers of the following sets.

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    (42, 18, 3)

    (36, 14, 4)

  4. Select the option that is related to the fifth letter-cluster in the same way as the second letter-cluster is related to the first letter-cluster and the fourth letter-cluster is related to the third letter-cluster.

    ABILITY : LIBAYTI : : CHRONIC : ORHCCIN : : HEAVILY : ?

  5. Select the set in which the numbers are related in the same way as are the numbers of the following set.

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    (4, 50, 6)

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