Understanding the Letter Analogy Pattern

The question asks us to find the related letters for the second pair based on the relationship shown in the first pair. The given analogy is LREA : MSFB :: BSFX : ?

Let's analyze the transformation from the first term, LREA, to the second term, MSFB.

We can look at the position of each letter in the alphabet or the shift from one letter to the next.

• L is the 12th letter. M is the 13th letter. The shift is $\text{L} \to \text{M}$ (which is $+1$).
• R is the 18th letter. S is the 19th letter. The shift is $\text{R} \to \text{S}$ (which is $+1$).
• E is the 5th letter. F is the 6th letter. The shift is $\text{E} \to \text{F}$ (which is $+1$).
• A is the 1st letter. B is the 2nd letter. The shift is $\text{A} \to \text{B}$ (which is $+1$).

It is clear that each letter in LREA is shifted one position forward in the English alphabet to get the corresponding letter in MSFB.

Applying the Pattern to BSFX

Now, we apply the same pattern (shifting each letter one position forward) to the term BSFX to find the related letters.

• Take the first letter of BSFX, which is B. Shifting B one position forward in the alphabet gives C.
• Take the second letter of BSFX, which is S. Shifting S one position forward in the alphabet gives T.
• Take the third letter of BSFX, which is F. Shifting F one position forward in the alphabet gives G.
• Take the fourth letter of BSFX, which is X. Shifting X one position forward in the alphabet gives Y.

Combining these new letters, we get CTGY.

Let's summarise the transformation in a table:

Therefore, BSFX is related to CTGY in the same way that LREA is related to MSFB.

Identifying the Correct Option

The letters derived by applying the pattern to BSFX are CTGY. We check the given options to find a match.

• Option 1: XFBA
• Option 2: XFSB
• Option 3: ERLA
• Option 4: CTGY

The result CTGY matches Option 4.

Revision Table: Understanding Letter Analogies

Additional Information on Letter Series and Patterns

Letter analogy and letter series questions are common in reasoning tests. They often involve patterns based on:

• Letter Position: The position of letters in the alphabet (A=1, B=2, etc.). Patterns can involve adding, subtracting, multiplying, or dividing these numbers.
• Letter Shifting: Shifting letters forward or backward by a fixed number of positions, wrapping around from Z to A or A to Z if necessary.
• Reverse Alphabetical Order: Using the letters in reverse order (Z=1, Y=2, etc.) or patterns based on letter pairs in reverse (A is opposite Z, B is opposite Y, etc.).
• Skipping Letters: Patterns based on skipping a fixed number of letters between consecutive terms.
• Vowel/Consonant Patterns: Patterns based on the position or sequence of vowels and consonants.
• Combination of Patterns: Some problems combine multiple types of patterns simultaneously.

Solving these questions requires familiarity with the alphabet and the ability to quickly identify the underlying rule connecting the terms in the analogy or series.