Question : Directions: Select the term from among the given options that can replace the question mark (?) in the following series based on the English alphabetical order.
ADE, CFH, EHK, GJN, ?
Option 1: IJK
Option 2: HKQ
Option 3: ILK
Option 4: ILQ
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Correct Answer: ILQ
Solution : Given:
ADE, CFH, EHK, GJN, ?
In the above-given series, add 2 to the place value of the first and the second letters, and add 3 to the place value of the third letter, to obtain the next letter cluster.
First letter of the series→A + 2 = C; C + 2 = E; E + 2 = G; G + 2 = I
Second letter of the series→D + 2 = F; F + 2 = H; H + 2 = J; J + 2 = L
Third letter of the series→E + 3 = H; H + 3 = K; K + 3 = N; N + 3 =Q
So, ILQ is the required letter cluster of the given series. Hence, the fourth option is correct.
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