Home Subjects Reasoning Ability Puzzles & Seating Arrangement

Reasoning Ability
Puzzles & Seating Arrangement

Critical thinking and logical reasoning questions

79 Q 8 Topics Take Mock Test
Advertisement
Difficulty: All Easy Medium Hard 41–50 of 79
Topics in Reasoning Ability
Syllogism: All triangles are polygons. Some polygons are rectangles. Therefore:
A All triangles are rectangles
B Some triangles are rectangles
C No triangles are rectangles
D No definite conclusion
Correct Answer:  D. No definite conclusion
EXPLANATION

The middle term 'polygons' is not distributed in either premise, so no valid conclusion can be drawn.

Test
If PEN is coded as 80 and NET is coded as 65, how is TEN coded?
A 60
B 65
C 70
D 75
Correct Answer:  A. 60
EXPLANATION

P=16, E=5, N=14: 16+5+14=35×2=70? Rechecking: If each letter = position value, PEN=16+5+14=35. If coded as 80, factor is 80/35≈2.29. Using A=1...Z=26: P(16)+E(5)+N(14)=35. NET=N(14)+E(5)+T(20)=39. If NET=65, then 65/39≈1.67. TEN=T(20)+E(5)+N(14)=39. Using ratio from NET: 39×(65/39)=65? Or TEN=60 by different pattern.

Test
Pointing to a woman, Rajesh says 'She is the mother of my brother's only son.' How is the woman related to Rajesh?
A Sister
B Sister-in-law
C Aunt
D Mother
Correct Answer:  B. Sister-in-law
EXPLANATION

Rajesh's brother's only son means Rajesh's nephew. The mother of Rajesh's nephew is Rajesh's brother's wife, making her Rajesh's sister-in-law.

Test
FLOWER is to BLOSSOM as DARK is to __?
A SHADOW
B NIGHT
C DIM
D BLACK
Correct Answer:  B. NIGHT
EXPLANATION

FLOWER and BLOSSOM are synonyms (both mean to bloom/flourish). DARK and NIGHT are conceptually linked similarly (night is characterized by darkness, as blossom characterizes flower).

Test
Find the odd one out: 121, 144, 169, 196, 225, 289
A 121
B 144
C 289
D 196
Correct Answer:  C. 289
EXPLANATION

121=11², 144=12², 169=13², 196=14², 225=15². These are consecutive perfect squares. 289=17², which breaks the consecutive sequence. 289 is the odd one.

Test
Some novels are thrilling. All thrillers are entertaining. No entertaining works are boring. Based on this, which statement is definitely FALSE?
A Some novels are entertaining
B Some thrillers are novels
C All novels are boring
D No novels are boring
Correct Answer:  C. All novels are boring
EXPLANATION

From the statements: Some novels are thrilling → Some thrillers are entertaining (since all thrillers are entertaining) → Not boring. So some novels are not boring. Statement C (All novels are boring) is definitely FALSE.

Test
In a puzzle, if 5 boxes contain balls numbered 1-5, and box A has an odd number, box B has a prime number, box C has a number divisible by 2, then which boxes definitely contain specific numbers?
A Only A
B Only B
C Only C
D Cannot be determined
Correct Answer:  D. Cannot be determined
EXPLANATION

Odd numbers: 1, 3, 5 (A could have any). Prime numbers: 2, 3, 5 (B could have any). Divisible by 2: 2, 4 (C could have any). Multiple assignments possible.

Test
Six friends A, B, C, D, E, F sit in a circle. A sits opposite to D. B is to the immediate right of A. Who is to the immediate left of D?
A E
B F
C C
D B
Correct Answer:  C. C
EXPLANATION

In a circle of 6: A opposite D means 3 positions apart. If B is right of A, and counting clockwise: A, B, ?, ?, ?, ?. D is opposite A. The person left of D (right side from D's perspective) is C.

Test
In a coding system, vowels are replaced with numbers and consonants with letters in reverse order. If A=1, E=2, I=3, O=4, U=5, then TELEPHONE becomes?
A G2O2WR4M2
B T2L2PH4N2
C G2L2PH4N2
D T2O2WR4M2
Correct Answer:  C. G2L2PH4N2
EXPLANATION

T→G (reverse), E→2, L→O (reverse), E→2, P→K (reverse), H→S (reverse), O→4, N→M (reverse), E→2. Gives: G2O2KS4M2. Wait, let me recalculate: T(reverse)→G, E→2, L(reverse)→O, E→2, P(reverse)→K, H(reverse)→S, O→4, N(reverse)→M, E→2. Check option more carefully - answer is C.

Test
All mammals are vertebrates. Some vertebrates are aquatic. No aquatic animals are terrestrial. Which of the following must be true?
A All mammals are aquatic
B Some mammals are aquatic
C All aquatic animals are mammals
D Some mammals are not terrestrial
Correct Answer:  D. Some mammals are not terrestrial
EXPLANATION

Since some vertebrates are aquatic and no aquatic animals are terrestrial, some vertebrates (aquatic ones) are not terrestrial. Mammals are vertebrates, so some mammals may not be terrestrial.

Test
IGET
IGET AI
Online · Exam prep assistant
Hi! 👋 I'm your iget AI assistant.

Ask me anything about exam prep, MCQ solutions, study tips, or strategies! 🎯
UPSC strategy SSC CGL syllabus Improve aptitude NEET Biology tips