Question : Directions: Select the term from the given options that can replace the question mark (?) in the following series based on the English alphabetical order.
GAF, GEF, GIF, GOF, ?
Option 1: GUF
Option 2: GTF
Option 3: GRF
Option 4: GSF
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Correct Answer: GUF
Solution :
Given:
GAF, GEF, GIF, GOF, ?
G and F are constant in each term and each second letter of the given terms is a vowel (a, e, i, o, u). Put these vowels in second place to obtain the next term in the series.
G
A
F→A is a vowel and next is E.
G
E
F→E is a vowel and next is I.
G
I
F→I is a vowel and next is O.
G
O
F→O is a vowel and next is U.
G
U
F→U is a vowel.
So, GUF is the missing term. Hence, the first option is correct.
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