In each of the following questions, a group of three numbers/symbols is given in each option. Identify the group that does NOT fo…
General Intelligence & Reasoning ·Previously asked in SSC CGL 2025
View the full solved paper: SSC CGL 2025 Tier I - 13 Sep 2025, Shift 2 (13 Sep 2025, Shift 2)
Question
In each of the following questions, a group of three numbers/symbols is given in each option. Identify the group that does NOT follow the same pattern as the others.
- A. M13 : J10 : G7
- B. Z26 : W23 : T20
- C. D4 : A1 : X24
- D. H8 : E6 : B4 (Correct answer)
Correct Answer
Option D — H8 : E6 : B4
Detailed Solution & Explanation
The correct answer is H8 : E6 : B4.
Key Points
- In each group the number should equal the letter's alphabetical position, and both should fall by 3 at each step:
- M13 : J10 : G7 — positions 13, 10, 7 ✓
- Z26 : W23 : T20 — positions 26, 23, 20 ✓
- D4 : A1 : X24 — positions 4, 1, then wrapping back to 24 ✓
- In H8 : E6 : B4 the letters do fall by 3 (H, E, B), but the numbers do not match their positions: E is 5, not 6, and B is 2, not 4.
- The letter-number correspondence breaks, so this group is the odd one.
Additional Information
- Two independent strands are running here — the letter sequence and the number sequence — and the rule requires them to agree. Test each strand separately, then test their relationship.
- The third group wraps from A(1) back to X(24), which looks irregular but is consistent once the alphabet is treated as circular.
- The odd group is deliberately built to satisfy part of the rule: its letters step correctly by 3, which is enough to pass a hurried check.
प्रश्न (हिन्दी में)
निम्नलिखित प्रत्येक प्रश्न में, प्रत्येक विकल्प में तीन संख्याओं/प्रतीकों का एक समूह दिया गया है। उस समूह की पहचान कीजिए जो अन्य के समान स्वरूप का पालन नहीं करता है।
- A. M13 : J10 : G7
- B. Z26 : W23 : T20
- C. D4 : A1 : X24
- D. H8 : E6 : B4
Topics covered: Odd One Out Letter-Number Coding