Home Subjects Reasoning Ability Puzzles & Seating Arrangement

Reasoning Ability
Puzzles & Seating Arrangement

Critical thinking and logical reasoning questions

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Difficulty: All Easy Medium Hard 11–20 of 79
Topics in Reasoning Ability
Series: 1, 1, 2, 3, 5, 8, 13, ?, 34. What is the missing number?
A 18
B 19
C 20
D 21
Correct Answer:  D. 21
EXPLANATION

This is the Fibonacci sequence where each number is sum of previous two. 8+13=21. Then 13+21=34.

Test
Five boxes are placed on a table: Red, Blue, Green, Yellow, Black. Red is to the left of Blue. Green is to the right of Yellow. Black is between Red and Green. What is the order?
A Red, Blue, Yellow, Black, Green
B Red, Black, Yellow, Green, Blue
C Red, Yellow, Black, Green, Blue
D Yellow, Red, Black, Green, Blue
Correct Answer:  C. Red, Yellow, Black, Green, Blue
EXPLANATION

Red < Blue. Yellow < Green. Red < Black < Green. Testing: Yellow(1), Red(2), Black(3), Green(4), Blue(5). Check: Red<Blue✓, Yellow<Green✓, Red<Black<Green✓. This satisfies all conditions.

Test
If DEAR is coded as 4-5-1-18, then CARE is coded as:
A 3-1-18-5
B 3-1-20-5
C 2-1-18-5
D 3-2-18-5
Correct Answer:  A. 3-1-18-5
EXPLANATION

D=4, E=5, A=1, R=18 (position from end of alphabet: D=23→4, E=22→5, A=26→1, R=9→18). For CARE: C=3, A=1, R=18, E=5 = 3-1-18-5.

Test
Series: 2, 6, 12, 20, 30, 42, ?, 72. What is the missing number?
A 54
B 56
C 58
D 60
Correct Answer:  B. 56
EXPLANATION

Differences: 4, 6, 8, 10, 12, 14, 16. Pattern increases by 2 each time. 42 + 14 = 56. Next would be 56 + 16 = 72.

Test
All writers are creative. Some creative people are teachers. Statement: Some teachers are writers. This statement is:
A True
B False
C Uncertain
D Definitely False
Correct Answer:  C. Uncertain
EXPLANATION

From 'All writers are creative' and 'Some creative people are teachers', we cannot definitively conclude whether any teachers are writers. Teachers could be creative without being writers. The conclusion is uncertain.

Test
In a circular seating arrangement, 6 people A, B, C, D, E, F sit around a table. B sits opposite to E. A is to the immediate right of B. C is between D and F. Who sits to the immediate left of D?
A F
B C
C E
D A
Correct Answer:  C. E
EXPLANATION

In circular arrangement with 6 people: B opposite E means 3 seats apart. A right of B. C between D and F means F-C-D or D-C-F. Testing positions: B at 1, A at 2 (right), E at 4 (opposite). Remaining D,C,F for 3,5,6. If D at 3, C at 5, F at 6: C is left of D. If D at 6, C at 3, F at 5: F is left of D. Checking constraint 'C between D and F': F(6)-C(5)-D(3) works in circular. Left of D(3) is C(5).

Test
ELEGANT is to GRACE as BRUTAL is to:
A Kindness
B Violence
C Cruelty
D Strength
Correct Answer:  C. Cruelty
EXPLANATION

Elegant implies grace; brutal implies cruelty. Synonymous relationship.

Test
Series: 2, 3, 5, 8, 12, 17, ?, what comes next?
A 21
B 23
C 25
D 27
Correct Answer:  B. 23
EXPLANATION

Differences: +1, +2, +3, +4, +5, +6. Next: 17+6=23

Test
In a puzzle, P is the son of Q. Q is the mother of R. R is the father of S. T is the son of R. How is P related to S?
A Uncle
B Brother
C Grandfather
D Cousin
Correct Answer:  A. Uncle
EXPLANATION

P is Q's son. Q is R's mother, so P is R's uncle. R is S's father, so P is S's uncle.

Test
All politicians are ambitious. Some ambitious people are honest. Based on this, which statement is definitely false?
A All politicians are honest
B Some politicians are honest
C Some politicians are ambitious
D No politician is honest
Correct Answer:  A. All politicians are honest
EXPLANATION

First statement guarantees all politicians are ambitious, but second statement only guarantees some ambitious are honest, not all. Statement A assumes all are honest - not necessarily true.

Test
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