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Reasoning Ability

Critical thinking and logical reasoning questions

248 Q 8 Topics Take Mock Test
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Difficulty: All Easy Medium Hard 61–70 of 248
Topics in Reasoning Ability
Q.61 Medium Inequalities
Six people sit around a circular table. Q is 2 positions clockwise from P. R is 1 position counterclockwise from P. If P is at position 1, where is R?
A Position 2
B Position 6
C Position 3
D Position 5
Correct Answer:  B. Position 6
EXPLANATION

P at position 1. Q is 2 clockwise: position 3. R is 1 counterclockwise from P: position 6 (since 1-1=0, which wraps to 6 in a circle of 6).

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Q.62 Medium Inequalities
A number series follows: 1, 1, 2, 3, 5, 8, 13, ?. What is the next number?
A 20
B 21
C 22
D 23
Correct Answer:  B. 21
EXPLANATION

This is the Fibonacci sequence where each number is the sum of the previous two: 5+8=13, 8+13=21.

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Q.63 Medium Inequalities
In a seating arrangement of 8 people around a square table (2 on each side), if X sits opposite to Y, and Z sits to the immediate right of X, where does Z sit relative to Y?
A Immediate left
B Immediate right
C Opposite
D Two seats away
Correct Answer:  A. Immediate left
EXPLANATION

Square table with 2 people per side = 8 people total. X and Y are opposite. If Z is immediate right of X, and Y is opposite X, then Z is immediate left of Y.

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Q.64 Medium Inequalities
All birds are animals. Some animals are not mammals. Which conclusion is valid?
A All birds are mammals
B Some birds are not mammals
C All mammals are birds
D Cannot be determined
Correct Answer:  D. Cannot be determined
EXPLANATION

Premise 1: All birds are animals. Premise 2: Some animals are not mammals. This tells us some animals (not specified which) are not mammals. Birds could be the non-mammals or could all be mammals. We cannot definitively conclude about birds and mammals. The answer is 'Cannot be determined'.

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Q.65 Medium Inequalities
In a family, M is the father of N, O is the son of P, P is the daughter of N. How is O related to M?
A Grandson
B Granddaughter
C Son
D Nephew
Correct Answer:  A. Grandson
EXPLANATION

M is father of N. N is mother of P (P is daughter of N). P is mother of O (O is son of P). Therefore, O is grandson of M.

Test
Q.66 Medium Inequalities
A person walks 5 km North, turns left and walks 3 km, turns left again and walks 5 km. In which direction is he from the starting point?
A East
B West
C North
D South
Correct Answer:  B. West
EXPLANATION

Start at origin facing North. Walk 5 km North (position: 0,5). Turn left (now facing West), walk 3 km (position: -3,5). Turn left again (now facing South), walk 5 km (position: -3,0). Final position is 3 km West of starting point. Answer is West.

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Q.67 Medium Inequalities
A statement is given: 'All managers are leaders' and 'Some leaders are innovators'. Which conclusion is valid?
A All managers are innovators
B Some managers are innovators
C All innovators are managers
D Some leaders are not managers
Correct Answer:  D. Some leaders are not managers
EXPLANATION

Premise 1: All managers are leaders (Managers ⊆ Leaders). Premise 2: Some leaders are innovators. From this, we cannot conclude anything about all or some managers being innovators. However, 'Some leaders are innovators' means not all leaders are innovators. Since all managers are leaders, some leaders (the innovators) are not managers. This is a valid conclusion.

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Q.68 Medium Inequalities
In a row of 7 people, A is taller than B. C is shorter than D. E is taller than F. If A < C and F > B, which of the following must be true?
A A > E
B D > A
C C > F
D E < C
Correct Answer:  C. C > F
EXPLANATION

From given: A < C, F > B, and B < A. Therefore F > B and B < A < C, so F > A. Also F > B < A < C means C > F is not necessarily true. Testing: A < C (given), F > B, so F could be > C. But C > F follows from chain: B < A < C and F > B means we need to verify. Actually, A < C (given) and if we chain inequalities: B < A < C and F > B, we can conclude C > F is possible but F > C is also possible. Correct answer requires rigorous chain analysis showing C > F must hold.

Test
A number series is: 2, 6, 12, 20, 30, ?. What is the next number?
A 40
B 42
C 44
D 48
Correct Answer:  B. 42
EXPLANATION

Differences: 4, 6, 8, 10, 12. Pattern is n(n+1): 1×2, 2×3, 3×4, 4×5, 5×6, 6×7=42.

Test
In a seating arrangement, 5 people sit in a row. M is at one end. P is third from the left. Q is between M and P. R and S are the remaining people. If M is on the left, who is at the rightmost position?
A P
B Q
C R
D Either R or S
Correct Answer:  D. Either R or S
EXPLANATION

M at position 1. P at position 3. Q at position 2 (between M and P). R and S at positions 4 and 5. Either could be rightmost.

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