Find the missing number: $23 : 125 :: 31 : ?$
The question presents a number analogy: 23 : 125 :: 31 : ?. We need to find the relationship between the first pair of numbers (23 and 125) and apply it to the second number (31) to find the missing number.
Finding the Pattern
- Consider the first number, 23. The sum of its digits is $2 + 3 = 5$.
- Now, calculate the cube of this sum: $5^3 = 5 \times 5 \times 5 = 125$. This matches the second number in the first pair.
Applying the Pattern
- Consider the second pair, starting with the number 31.
- The sum of its digits is $3 + 1 = 4$.
- Apply the same operation (cubing the sum of digits): $4^3 = 4 \times 4 \times 4 = 64$.
Conclusion
Therefore, the missing number in the analogy 31 : ? is 64.
Similar Questions
- Identify the roll number that doesn't fit this rule.
Last 3 digits = First 3 digits + 100 - If 2 * 3 = 8, 3 * 4 = 81, then 4 * 5 = ?
- Find the missing number: 17 : 4914 :: 19 : ?
How many of these roll numbers are palindromes? List: 123321, 654456, 112211, 123456
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.
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?
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)
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.
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?
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)
Important Questions from Number Based
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.
Choose the odd number out of the given options.
Identify the odd one from the following.
Identify the number that is different from the rest.
Four numbers have been given out of which three are alike in some manner, while one is different. Choose the odd one.
