In the Reasoning Ability section of IBPS PO 2025, questions based on Pair Formation are short yet tricky. While they may seem simple at first glance, they require attention to detail, quick alphabetical recall, and a sharp eye for patterns. To help aspirants tackle these effectively, we’ve compiled key tips, the topic’s importance, and a free PDF of expected questions.
Pair Formation questions are based on a given word or string of letters. You are asked to identify how many pairs of letters exist in the word that have the same number of letters between them as in the English alphabet (both forward and reverse directions may be considered).
Example:
How many such pairs of letters are there in the word “BRIGHT”, each of which has as many letters between them as in the English alphabet?
| Exam Stage | Approx. No. of Questions | Difficulty Level |
| Prelims | 1–2 | Easy to Moderate |
| Mains | Rarely Asked | Moderate |
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Question 1: How many pairs of letters are there in the word “DOWNSTREAM” which has as many letters between them in the word as in the Alphabetical Series?
A) Four
B) Two
C) Five
D) Three
E) None of the above
Solution:
DOWNSTREAM
DM, ST and TW are the three pairs, which have as many letters between them in the word as in the Alphabetical Series.
Hence, option d.
Question 2: How many pairs of letters are there in the word “GUIDEPOST” which has as many letters between them in the word as in the alphabetical series?
A) Four
B) Three
C) Five
D) Two
E) None of the above
Solution:
GI, DG, DE, OP and ST are the five pairs which have as many letters between them in the given word “GUIDEPOST” as in the alphabetical series.
Hence, option c.
Question 3: How many pairs of letters are there in the word “BECOMINGS” which has as many letters between them in the word as in the English Alphabetical Series?
A) Five
B) Three
C) Two
D) Four
E) More than five
Solution:
EI and GI are the two pairs which have as many letters between them in the word as in the English Alphabetical Series.
Hence, option c.
Question 4: How many pairs of letters are there in the word “KILOBARS” which has as many letters between them in the word as in the English Alphabetical Series?
A) Five
B) Three
C) Two
D) Four
E) More than five
Solution:
OR, OS, AB and RS are the four pairs which have as many letters between them in the word as in the English Alphabetical Series.
Hence, option d.
Question 5: How many pairs of letters are there in the word ‘WAREHOUS’ which has as many letters between them as well as we have in the English alphabetical series from both backward and forward direction?
A) One
B) Three
C) Two
D) Five
E) Four
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Also Read:
Usually 1–2 questions appear under the miscellaneous section
It is rare in Mains; focus more on Prelims-level practice.
Yes, it’s essential to solve these questions quickly.
Try to solve within 1–2 minutes.
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