Reasoning Ability — MCQ Practice Questions & Answers

Question 1

A person is standing at the origin of a coordinate system. He walks 5 km South, then 12 km West, then 9 km North, and finally 7 km East. At which direction is he now with respect to his starting point?

Accepted Answer

Correct answer: A. South-West — Step 1: Track the North-South displacement Starting at origin (0, 0), walking 5 km South gives position (0, -5), then 9 km North gives displacement of -5 + 9 = 4 km North. 	ext{Net North-South} = -5 + 9 = 4 	ext{ km North} Step 2: Track the East-West displacement Walking 12 km West gives position (-12, 4), then 7 km East gives displacement of -12 + 7 = -5 km (or 5 km West). 	ext{Net East-West} = -12 + 7 = -5 	ext{ km (5 km West)} Step 3: Determine final position and direction The final position is 5 km West and 4 km North of the starting point. Since the person is West and North of the origin, the direction is North-West. 	ext{Final position} = (-5, 4) 	ext{ km} **The person is now in the North-West direction with respect to the starting point, not South-West as given in option A. However, if the answer key states South-West, there may be an error in either the problem statement or the provided answer.**

Answer

B. North-West

Answer

C. South-East

Answer

D. North-East

Question 2

Amit starts walking from point A towards North. After walking 10 km, he turns right and walks 5 km. Then he turns left and walks 8 km. Finally, he turns right and walks 3 km to reach point B. In which direction is point B with respect to point A?

Accepted Answer

Correct answer: A. North-East — Tracking Amit's movements: Starting North, he goes 10 km North; turns right (East) and walks 5 km; turns left (North) and walks 8 km; turns right (East) and walks 3 km. His net displacement is 8 km North and 8 km East (5+3), placing point B in the North-East direction from point A.

Answer

B. East

Answer

C. South-East

Answer

D. North-West

Question 3

Series: 2, 4, 8, 16, __?

Accepted Answer

Correct answer: B. 32 — This question asks you to identify the pattern in a numerical sequence and find the missing number. Step 1: Identify the Pattern Look at the relationship between consecutive terms in the series: 2, 4, 8, 16, __? 	ext{Each term} = 	ext{Previous term} 	imes 2 Step 2: Apply the Pattern to Find Missing Term The last known term is 16, so multiply it by 2 to find the next term. 16 	imes 2 = 32 Step 3: Verify the Pattern Check that this pattern holds for all given terms: 2 × 2 = 4, 4 × 2 = 8, 8 × 2 = 16, 16 × 2 = 32 ✓ 	ext{This is a geometric sequence with common ratio } r = 2 The missing number in the series is 32, making the answer (B).

Answer

A. 24

Answer

C. 28

Answer

D. 30

Question 4

A is B sister, B is C brother. A is C's?

Accepted Answer

Correct answer: A. Sister — This question tests logical reasoning by establishing family relationships through given statements. Step 1: Analyze the first statement A is B's sister means A and B are siblings with the same parents. 	ext{A} = 	ext{B's sister} Step 2: Analyze the second statement B is C's brother means B and C are siblings with the same parents. 	ext{B} = 	ext{C's brother} Step 3: Determine A's relationship to C Since A is B's sister and B is C's brother, A and C must share the same parents, making them siblings. 	ext{If A is B's sister AND B is C's brother} ightarrow 	ext{A is C's sister} A is C's sister because both A and C share the same sibling (B), which means they are siblings to each other.

Answer

B. Cousin

Answer

C. Mother

Answer

D. Aunt

Question 5

Find odd one out: Apple, Mango, Potato, Banana

Accepted Answer

Correct answer: C. Potato — This question asks you to identify which item doesn't belong in the group based on a common characteristic. Step 1: Categorize by Type All items need to be classified into food categories. 	ext{Apple, Mango, Banana} ightarrow 	ext{Fruits} 	ext{Potato} ightarrow 	ext{Vegetable} Step 2: Identify the Common Property Three items share the characteristic of being fruits that grow on trees. 	ext{Fruits: grow on trees, sweet taste, seeds inside} Step 3: Find the Odd One Out Potato is fundamentally different as it is a root vegetable that grows underground. 	ext{Potato: grows underground, starchy tuber, not a fruit} Potato is the odd one out because it is a vegetable, while Apple, Mango, and Banana are all fruits.

Answer

A. Apple

Answer

B. Mango

Answer

D. Banana

Question 6

Direction: Start North, turn right, turn right again. Facing?

Accepted Answer

Correct answer: A. South — This question tests directional reasoning by tracking angular changes from an initial facing direction. Step 1: Identify starting position You begin facing North. 	ext{Initial Direction} = 	ext{North} Step 2: Apply first right turn Turning right (clockwise) from North rotates you 90° clockwise. 	ext{After Turn 1} = 	ext{North} + 90° = 	ext{East} Step 3: Apply second right turn Turning right again (clockwise) from East rotates you another 90° clockwise. 	ext{After Turn 2} = 	ext{East} + 90° = 	ext{South} After starting North and turning right twice (two 90° clockwise rotations), you are facing South.

Answer

B. East

Answer

C. West

Answer

D. North

Question 7

A taller than B. B taller than C. C taller than D. Shortest?

Accepted Answer

Correct answer: D. D — This question tests the ability to arrange people in order based on comparative height statements. Step 1: List all the given relationships We have four people: A, B, C, and D with the following comparisons. A > B > C > D Step 2: Arrange from tallest to shortest Ordering them in descending order of height based on the chain of inequalities. 	ext{Tallest: } A, 	ext{ then } B, 	ext{ then } C, 	ext{ then } D 	ext{ (Shortest)} Step 3: Identify the shortest person The person at the end of the descending chain is the shortest. D 	ext{ is the shortest person} The shortest person is D, so the correct answer is (D).

Answer

A. A

Answer

B. B

Answer

C. C

Question 8

A is 2 yrs older than B who is twice C's age. C=10, A=?

Accepted Answer

Correct answer: B. 22 — This question involves finding A's age using the given relationships between the ages of three people. Step 1: Find B's age We know C = 10 and B is twice C's age. B = 2 	imes C = 2 	imes 10 = 20 	ext{ years} Step 2: Find A's age We know A is 2 years older than B. A = B + 2 = 20 + 2 = 22 	ext{ years} Step 3: Verify the relationships Check: C = 10, B = 2 × 10 = 20, A = 20 + 2 = 22 ✓ 	ext{All conditions satisfied: B is twice C's age and A is 2 years older than B} A's age is 22 years, making the correct answer B) 22.

Answer

A. 20

Answer

C. 24

Answer

D. 18

Reasoning Ability - MCQ Practice Questions