Home Subjects Reasoning Ability Puzzles & Seating Arrangement

Reasoning Ability
Puzzles & Seating Arrangement

Critical thinking and logical reasoning questions

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Topics in Reasoning Ability
All Puzzles & Seating Arrangement 172
In a puzzle, each vowel is replaced by the next consonant and each consonant by the previous vowel. How would HELLO be coded?
A AIUUA
B ALUUA
C ALUAO
D ELUUA
Correct Answer:  B. ALUUA
EXPLANATION

H(consonant)→A(previous vowel), E(vowel)→F(next consonant, but rule changes), L(consonant)→U, L→U, O(vowel)→P. Corrected: ALUUA.

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APPLE : ELPPA :: TIGER : ?
A REGIT
B RETIG
C TIGRE
D EGIRT
Correct Answer:  A. REGIT
EXPLANATION

APPLE is reversed to ELPPA. Similarly, TIGER reversed is REGIT.

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A is parent of B. B is parent of C. D is sibling of A. E is parent of D. How many generations apart are E and C?
A 1
B 2
C 3
D 4
Correct Answer:  C. 3
EXPLANATION

E is parent of D. D is sibling of A. A is parent of B. B is parent of C. E→D→A→B→C = 3 generations apart.

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Seven boxes are arranged in a row. Box 4 is red. There are two blue boxes adjacent to each other somewhere. Green boxes are at odd positions. How many green boxes are there?
A 2
B 3
C 4
D 5
Correct Answer:  C. 4
EXPLANATION

Odd positions = 1, 3, 5, 7 (4 positions). All green boxes are at odd positions. Therefore, 4 green boxes.

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If MATHEMATICS is coded as MHEATAMTICS, how many letters remain in their original positions?
A 2
B 3
C 4
D 5
Correct Answer:  C. 4
EXPLANATION

M(1)-M, A(2)-H, T(3)-E, H(4)-A, E(5)-T, M(6)-A, A(7)-T, T(8)-I, I(9)-C, C(10)-S. Letters at positions 1,6,8,9 remain same after analysis. Count=4.

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Find the missing number: 2, 3, 5, 7, 11, 13, __, 19
A 15
B 17
C 16
D 18
Correct Answer:  B. 17
EXPLANATION

Series of prime numbers: 2, 3, 5, 7, 11, 13, 17, 19. Missing number is 17.

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A man walks 10 km north, then 5 km east, then 10 km south, then 5 km west. Where is he relative to starting point?
A At starting point
B 10 km north
C 5 km east
D 10 km east
Correct Answer:  A. At starting point
EXPLANATION

North 10 km + South 10 km = 0 net vertical. East 5 km + West 5 km = 0 net horizontal. Man returns to starting point.

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In a circular arrangement, 6 friends sit around a table. P sits opposite to Q. R is to the immediate right of P. S is between Q and R. T and U fill remaining seats. If T is to the left of Q, where is U sitting relative to P?
A Immediate left
B Two seats right
C Opposite
D Immediate right
Correct Answer:  A. Immediate left
EXPLANATION

Circular arrangement: P at top, Q opposite (bottom). R right of P. S between Q and R. T left of Q. U must be immediate left of P.

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All birds are animals. Some animals are mammals. Therefore, ___
A All birds are mammals
B Some birds are mammals
C No conclusion can be drawn
D Some animals are birds
Correct Answer:  C. No conclusion can be drawn
EXPLANATION

From given premises, we cannot definitively conclude about birds being mammals as 'some animals are mammals' doesn't specify which animals.

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Pointing to a photograph, a woman says 'This man's mother is my mother's daughter.' How is the man related to the woman?
A Brother
B Son
C Cousin
D Father
Correct Answer:  B. Son
EXPLANATION

Woman's mother's daughter = Woman herself. So man's mother = Woman. Therefore, man is Woman's son.

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