SSC CGL Reasoning – Classification / Odd One Out – Tier II Level · Marathon

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SSC CGL Reasoning – Classification / Odd One Out – Tier II Level · Marathon – 8 questions, subject: General Intelligence & Reasoning. Every question has the correct answer with a one-line explanation; tap "Show Answer". Free practice for TNPSC, UPSC, SSC, Bank and RRB exams – Shanmugam IAS Academy, Coimbatore.

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1.  
Odd one outNOTE: Operations should be performed on the whole numbers, without breaking down the numbers into their constituent digits.
Find the odd pair: (6, 217), (7, 344), (9, 730), (8, 511)

Correct Answer: D [(8, 511)]

Explanation:

Second = first³ + 1 in three pairs; 8³ + 1 = 513, but 511 = 8³ − 1.

2.  
Odd one outNOTE: Operations should be performed on the whole numbers, without breaking down the numbers into their constituent digits.
Find the odd set: (5, 25, 125), (9, 81, 729), (11, 121, 1331), (7, 28, 196)

Correct Answer: C [(7, 28, 196)]

Explanation:

Sets of the form (n, n², n³); for 7 it should be (7, 49, 343).

3.  
Odd one outFind the odd letter cluster: DGFI, LONQ, NQPS, KNMQ
NOTE: The odd one out is not based on the number of consonants/vowels or their position in the letter cluster.

Correct Answer: A [KNMQ]

Explanation:

Gaps +3, −1, +3 in DGFI, LONQ and NQPS; K11 N14 M13 Q17 has +3, −1, +4.

4.  
Odd one outFind the odd pair: Oven : Bake, Spade : Dig, Scissors : Cut, Car : Garage

Correct Answer: B [Car : Garage]

Explanation:

Three pairs are object : its use; Car : Garage is object : place where it is kept.

5.  
Odd one outNOTE: Operations should be performed on the whole numbers, without breaking down the numbers into their constituent digits.
Find the odd number: 1728, 2744, 5832, 3374

Correct Answer: B [3374]

Explanation:

1728 = 12³, 2744 = 14³, 5832 = 18³; 3374 = 15³ − 1.

6.  
Odd one outFind the odd one: C9, E25, G49, I80

Correct Answer: D [I80]

Explanation:

Number = (letter position)²: C → 9, E → 25, G → 49, I → 81 (not 80).

7.  
Assertion–ReasonAssertion (A): In 31, 41, 51, 61 the odd number is 51.
Reason (R): 51 = 3 × 17, while 31, 41 and 61 are prime.

Correct Answer: C [Both A and R are true and R explains A]

Explanation:

51 is the only composite number, which is exactly what R says.

8.  
Odd one outFind the odd letter group: BGL, JOT, NSX, EKP

Correct Answer: A [EKP]

Explanation:

B2 G7 L12, J10 O15 T20, N14 S19 X24 → +5, +5; E5 K11 P16 → +6, +5.

➤ Full notes, shortcuts and every answer explained – SSC CGL 2026 General Intelligence & Reasoning book (₹149): www.shanmugamiasacademy.in/study-materials/ssc-cgl-general-intelligence-reasoning

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