13, 23, 33, 43, 53
Odd One Out Logic
The task is to identify the number that does not fit the pattern within the sequence: 13, 23, 33, 43, 53.
Number Digit Analysis
We examine the properties of the digits that make up each number:
- 13: Digits are 1 (unit) and 3 (prime).
- 23: Digits are 2 (prime) and 3 (prime).
- 33: Digits are 3 (prime) and 3 (prime).
- 43: Digits are 4 (composite) and 3 (prime).
- 53: Digits are 5 (prime) and 3 (prime).
Conclusion: Identifying 43
The number 43 stands out because it is the only number in the list that includes a composite digit (4). All other numbers are formed using only prime digits (2, 3, 5) or the unit digit 1.
Important Questions from Number Series
What will come in place of question mark (?) in the following number series?
2, 5, 11, 23, 44, 77, ?
What will come in place of question mark (?) in the following number series?
31, 32, 36, ?, 61, 86
What will come in the place of question mark (?) in the following number series?
3, 6, 18, ?, 630, 6930
What should come in place of the question mark ‘?’ in the following number series?
60, 40, 50, ?, 180, 460
A series is given with one term wrong. Select that wrong term from the given alternatives.
J12, M24, P48, S96, U192
