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)A1@ : C3# : E5$
- (b)B2% : D4^ : F6&
- (c)C3* : E5( : G7)
- (d)D4_ : F6@ : I9&
Answer
Why
Correct — D.
Rule: letters step +2, and each number is its letter's position.
(a) A1, C3, E5 · (b) B2, D4, F6 · (c) C3, E5, G7 all fit.
D4 : F6 : I9 keeps each number matched to its letter (I = 9), but the step breaks: D → F is +2, F → I is +3. Option (d) is the odd one.
Why the others are wrong
- (a)A1@ : C3# : E5$ — A, C, E step by 2 and carry 1, 3, 5, their own positions. Group (a) fits the rule, so it is not the odd one.
- (b)B2% : D4^ : F6& — B, D, F step by 2 and carry 2, 4, 6, their own positions. Group (b) follows the same pattern as (a) and (c).
- (c)C3* : E5( : G7) — C, E, G step by 2 and carry 3, 5, 7, their own positions. Group (c) fits the rule, and its symbols do not change that.
Concept
Each term packs three things: a letter, a number and a symbol. Test them one layer at a time.
Here every number is its letter's position (A = 1, C = 3 …), so the numbers add nothing new. The letter step decides: +2, +2 in groups (a), (b) and (c), but +2, +3 in D, F, I. Within each group the three symbols are all different, so they separate nothing.
Group (d) passes the number check, since D = 4, F = 6 and I = 9. Only the step between letters exposes it.
Key facts
- D = 4, F = 6, I = 9: the numbers in group (d) are correct positions.
- D → F is +2 but F → I is +3, which breaks the +2 step.
- Groups (a), (b) and (c) each step +2 twice.
Study next
Common traps
- Checking only that each number matches its letter, which group (d) passes
15 Sep 2025, 16:00, Reasoning Q.20 uses the same template, but its other three groups carry each letter's position + 1 (A2, C4, E6). The keyed D5_ : G9@ : J13$ steps its letters by +3 and breaks that rule: G = 7 prints 9, J = 10 prints 13.
12 Sep 2025, 09:00, Reasoning Q.21 keeps every letter step intact and keys J10_ : K11@ : L12@, the group whose symbol repeats.
Related PYQs
No directly related past PYQ was found.