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Question : Directions: Select the letter-cluster from among the given options that can replace the question mark (?) in the following series.
AEI, EIO, IOU, ?

Option 1: UAE

Option 2: AEI

Option 3: OUA

Option 4: All


Team Careers360 19th Jan, 2024
Answer (1)
Team Careers360 25th Jan, 2024

Correct Answer: OUA


Solution : Given:
AEI, EIO, IOU, ?

Vowels are replaced with immediate next vowels according to the English alphabetical series and the order is –
A, E, I, O, U
AEI → The immediate next vowel of A is E, the Immediate next vowel of E is I, and the immediate next vowel of I is O → EIO
EIO → The immediate next vowel of E is I, the Immediate next vowel of I is O, and the immediate next vowel of O is U → IOU
IOU → The immediate next vowel of I is O, the Immediate next vowel of O is U, and the immediate next vowel of U is A → OUA

So, the required missing term in the series is OUA. Hence, the third option is correct.

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