2 3 B _ 6 _ F G _ 5 _ D _ 8 _ H I Options: A . &nbspC, 7, 4, E, 9 B . &nbspD, 8, 6, C, 7 C . &nbspE, 8, 7, D, 9 D . &nbspW, 8, 7, I, 6

2 3 B _ 6 _ F G _ 5 _ D _ 8

Question

Directions: In each of the following questions, a series of letters and numbers is given, the terms of which follow certain definite pattern in groups. However, some terms in the series are missing, which are given in the same order as one of the alternatives below the series. Choose the correct alternative.

[B.T.M. 2005]

2 3 B _ 6 _ F G _ 5 _ D _ 8 _ H I

Options:

A . C, 7, 4, E, 9

B . D, 8, 6, C, 7

C . E, 8, 7, D, 9

D . W, 8, 7, I, 6

Answer: Option A
Answer: (a)
From the alternatives, it is clear that the series can be divided into groups of 4 terms each _ each group comprising of two numbers followed by two letters, as shown below:
2 3 B _ / 6 _ F G / _ 5 D _ / 8 _ H I
Clearly, the first number in each group represents the position of the letter in the third place, in the English alphabet.
Thus, the third missing term is the number corresponding to the position of D in the English alphabet
i.e. 4, which is given in (a).
Substituting other terms of (a) into the series, we get
2 3 B C / 6 7 F G / 4 5 D E / 8 9 H I
Observe that the second number in each group represents the position of the letter in the fourth place, in the English alphabet.

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