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English and Logical Reasoning Prep Guide

Exam: English and Logical Reasoning Prep Guide
Subject: Logical Reasoning
Chapter: Series Completion

English and Logical Reasoning Prep Guide · Logical Reasoning · Series Completion

Paragraph: Another type of sequence question involves a series of...

Paragraph: Another type of sequence question involves a series of letters in a pattern. Usually, these questions use the letters' alphabetical order as a base. To make matters more complicated, sometimes subscript numbers will be thrown into the letter sequence. In these series, you will be looking at both the letter pattern and the number pattern. Some of these questions ask you to fill the blank in the middle of the series; others ask you to add to the end of the series.Question:

D E FD E F_2D E_2 F_2\_\_\_\_D_2 E_2 F_3

Options

A $\mathrm{DEF}_3$
B $\mathrm{D}_3 \mathrm{EF}_3$
C $\mathrm{D}_2 \mathrm{E}_3 \mathrm{~F}$
D $\mathrm{D}_2 \mathrm{E}_2 \mathrm{~F}_2$

Correct answer

D. $\mathrm{D}_2 \mathrm{E}_2 \mathrm{~F}_2$

Step-by-step solution

In this series, the letters remain the same: DEF. The subscript numbers follow this series:

{ }_{1,1,1}

;

{ }_{1,1,2}

;

{ }_{1,2,2}

;

{ }_{2,2,2}

;

{ }_{2,2,3}

.

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