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Question

If 2 * 3 = 8, 3 * 4 = 81, then 4 * 5 = ?

This question was previously asked in
SSC CGL 2025 Tier 2 Paper 1 Question Paper (19-Jan-2026)
The correct answer is
1024

Pattern Recognition: 2 * 3 = 8

The question presents a pattern-based calculation rather than standard multiplication.

  • First case: 2 * 3 = 8. This can be represented as $2^3 = 8$.
  • Second case: 3 * 4 = 81. This can be represented as $3^4 = 81$.

The established pattern is that $a * b$ is calculated as $a^b$.

Applying the Pattern: 4 * 5

To find the result for 4 * 5, we apply the identified pattern $a^b$:

  1. Substitute $a=4$ and $b=5$.
  2. Calculate $4^5$.
  3. $4^5 = 4 \times 4 \times 4 \times 4 \times 4 = 1024$.

Therefore, 4 * 5 = 1024 based on the established pattern.

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Similar Questions

  1. Identify the roll number that doesn't fit this rule.
    Last 3 digits = First 3 digits + 100
  2. Find the missing number: 17 : 4914 :: 19 : ?
  3. Find the missing number: $23 : 125 :: 31 : ?$

  4. How many of these roll numbers are palindromes? List: 123321, 654456, 112211, 123456

  5. The second number in the given number-pairs is obtained by performing certain mathematical operation(s) on the first number. The same operation(s) is/are followed in all the number-pairs except one. Find that odd number-pair.

  6. Three of the following four triads are alike in a certain way as they are formed by performing same mathematical operations among themselves and thus form a group. Which triad does NOT belong to that group?

  7. The second number in the given number-pairs is obtained by performing certain mathematical operation(s) on the first number. The same operation(s) is/are followed in all the number-pairs, except one. Find that odd number-pair.

    (NOTE: The relation should be found without breaking down the numbers into its constituent digits)

  8. The second number in the given number pairs is obtained by performing certain mathematical operation(s) on the first number. The same operation(s) are followed in all the number pairs, EXCEPT one. Find that odd number pair.

  9. Three of the following four triads are alike in a certain way as they are formed by performing same mathematical operations among themselves and thus form a group. Which triad does NOT belong to that group?

  10. The second number in the given number-pairs is obtained by performing certain mathematical operation(s) on the first number. The same operation(s) is/are followed in all the number-pairs, except one. Find that odd number-pair.

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Important Questions from Number Based

  1. Four number triads have been given, out of which three are alike in some manner and one is different. Select the number triad that is different.

  2. Choose the odd number out of the given options.

  3. Identify the odd one from the following.

  4. Identify the number that is different from the rest.

  5. Four numbers have been given out of which three are alike in some manner, while one is different. Choose the odd one.

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