Find the odd one out in the series: E5, I9, M13, P17, U21
- AP17
- BE5
- CI9
- DU21
Solution & Step-by-step Explanation
Let's check the correlation between the letter and its corresponding number in each term:
* E5: Position of E in alphabet = 5.
* I9: Position of I in alphabet = 9.
* M13: Position of M in alphabet = 13.
* P17: Position of P in alphabet = 16, but given as 17.
* U21: Position of U in alphabet = 21.
Every term except "P17" consists of an alphabet paired with its exact English alphabetical position number. Since the alphabetical number of P is 16, "P17" is the odd one out.
* E5: Position of E in alphabet = 5.
* I9: Position of I in alphabet = 9.
* M13: Position of M in alphabet = 13.
* P17: Position of P in alphabet = 16, but given as 17.
* U21: Position of U in alphabet = 21.
Every term except "P17" consists of an alphabet paired with its exact English alphabetical position number. Since the alphabetical number of P is 16, "P17" is the odd one out.