Mental Aptitude and Reasoning Quiz
Free practice quiz on Mental Aptitude and Reasoning Quiz with detailed solutions for government exam preparation.
About This Quiz
Mental Aptitude and Reasoning Quiz — Questions with Solutions
All 25 questions from this quiz with the correct answer and explanation. Attempt them yourself first, then open each solution to check your reasoning.
Q1.Find the odd one out: Square, Rectangle, Triangle, Apple
- A.Square
- B.Rectangle
- C.Triangle
- D.Apple
Show answer
Answer: D. Apple
Apple is a fruit; the others are geometric shapes.
Q2.Complete the series: 10, 20, 30, 40, ?
- A.45
- B.50
- C.55
- D.60
Show answer
Answer: B. 50
This series increases by 10 each time; 40+10=50.
Q3.If today is Sunday, what day will it be after 15 days?
- A.Sunday
- B.Monday
- C.Tuesday
- D.Wednesday
Show answer
Answer: B. Monday
15 mod 7 = 1, so Sunday + 1 day = Monday.
Q4.A is taller than B. B is taller than C. Who is the tallest?
- A.A
- B.B
- C.C
- D.Cannot be determined
Show answer
Answer: A. A
Given A > B > C, A is the tallest.
Q5.Find the missing number: 5, 10, 20, 40, ?
- A.60
- B.70
- C.80
- D.90
Show answer
Answer: C. 80
Each term doubles the previous one; 40*2=80.
Q6.If 'CAT' is coded as '3120' (alphabet positions), how is 'DOG' coded?
- A.4157
- B.4715
- C.4175
- D.4517
Show answer
Answer: A. 4157
D=4, O=15, G=7, giving '4157'.
Q7.Find the odd one out: 3, 5, 7, 9, 11
- A.3
- B.5
- C.9
- D.11
Show answer
Answer: C. 9
3,5,7,11 are prime numbers; 9 is not prime.
Q8.A man walks 3 km North and then 4 km East. How far is he from the starting point?
- A.5 km
- B.6 km
- C.7 km
- D.8 km
Show answer
Answer: A. 5 km
Using the Pythagorean theorem: sqrt(3^2+4^2)=5 km.
Q9.Complete the analogy: Doctor is to Patient as Teacher is to:
- A.Student
- B.School
- C.Book
- D.Classroom
Show answer
Answer: A. Student
A doctor treats a patient, just as a teacher teaches a student.
Q10.Find the next letter: A, C, E, G, ?
- A.H
- B.I
- C.J
- D.K
Show answer
Answer: B. I
This series skips one letter each time: A,C,E,G,I.
Q11.If all Cats are Animals and all Animals need Food, do all Cats need Food?
- A.Yes
- B.No
- C.Cannot be determined
- D.Only some cats
Show answer
Answer: A. Yes
Following the logical chain, all Cats need Food.
Q12.Find the odd one out: Delhi, Mumbai, Kolkata, India
- A.Delhi
- B.Mumbai
- C.Kolkata
- D.India
Show answer
Answer: D. India
India is a country; the others are cities.
Q13.A clock shows 9:00. What is the angle between the hour and minute hands?
- A.60 degrees
- B.90 degrees
- C.120 degrees
- D.180 degrees
Show answer
Answer: B. 90 degrees
At 9:00, the hands form a 90-degree angle.
Q14.Find the missing number: 7, 14, 21, 28, ?
- A.30
- B.32
- C.35
- D.40
Show answer
Answer: C. 35
This series increases by 7 each time; 28+7=35.
Q15.If 2 apples cost Rs 20, how much do 6 apples cost?
- A.Rs 40
- B.Rs 50
- C.Rs 60
- D.Rs 70
Show answer
Answer: C. Rs 60
Each apple costs Rs 10, so 6 apples cost Rs 60.
Q16.Find the odd one out: Rose, Lily, Lotus, Mango
- A.Rose
- B.Lily
- C.Lotus
- D.Mango
Show answer
Answer: D. Mango
Mango is a fruit; the others are flowers.
Q17.Complete the series: 1, 1, 2, 3, 5, ?
- A.6
- B.7
- C.8
- D.9
Show answer
Answer: C. 8
This is the Fibonacci sequence; each term is the sum of the two before it: 3+5=8.
Q18.A is the father of B. C is the son of B. How is A related to C?
- A.Grandfather
- B.Father
- C.Uncle
- D.Brother
Show answer
Answer: A. Grandfather
Since A is B's father, and C is B's son, A is C's grandfather.
Q19.Find the next number in the series: 81, 27, 9, 3, ?
- A.1
- B.0
- C.2
- D.4
Show answer
Answer: A. 1
Each term is divided by 3; 3/3=1.
Q20.If a train travels 200 km in 4 hours, what is its average speed?
- A.40 km/h
- B.50 km/h
- C.60 km/h
- D.70 km/h
Show answer
Answer: B. 50 km/h
Speed = Distance/Time = 200/4 = 50 km/h.
Q21.Find the odd one out: Circle, Sphere, Cube, Cylinder
- A.Circle
- B.Sphere
- C.Cube
- D.Cylinder
Show answer
Answer: A. Circle
Circle is a 2D shape; the others are 3D shapes.
Q22.Complete the analogy: Pen is to Write as Scissors is to:
- A.Cut
- B.Draw
- C.Paint
- D.Erase
Show answer
Answer: A. Cut
Scissors are used to cut, just as a pen is used to write.
Q23.Find the missing number: 12, 24, 36, 48, ?
- A.50
- B.54
- C.60
- D.64
Show answer
Answer: C. 60
This series increases by 12 each time; 48+12=60.
Q24.A is older than B but younger than C. Who is the youngest?
- A.A
- B.B
- C.C
- D.Cannot be determined
Show answer
Answer: B. B
Given C > A > B, B is the youngest.
Q25.Find the next letter in the sequence: B, E, H, K, ?
- A.L
- B.M
- C.N
- D.O
Show answer
Answer: B. M
This series skips two letters each time: B,E,H,K,N.
Frequently Asked Questions
Is Mental Aptitude and Reasoning Quiz free to attempt on AajExam?
Yes. Mental Aptitude and Reasoning Quiz is completely free. You only need a free AajExam account to track your score, view detailed solutions and unlock cross-attempt analytics.
How long does it take to complete Mental Aptitude and Reasoning Quiz?
Mental Aptitude and Reasoning Quiz runs on a 25-minute timer in real exam-style conditions. The clock starts the moment you click Start, mirroring the time pressure of the actual exam.
Are detailed solutions provided?
Yes. Every question on Mental Aptitude and Reasoning Quiz ships with a complete step-by-step solution, the underlying concept, and (where applicable) shortcut tricks. You can also discuss any question with the AajExam community.
Can I attempt Mental Aptitude and Reasoning Quiz multiple times?
Yes. You can attempt this quiz as many times as you like. Each attempt is recorded separately so you can track improvement in score, accuracy and time-management.
Which government exams does this quiz prepare me for?
Mental Aptitude / Reasoning questions appear regularly in SSC CGL, CHSL, MTS, GD; IBPS PO, Clerk; SBI PO, Clerk; RRB NTPC, Group D; UPSC prelims and most State PSC exams. The specific weightage varies by exam — check the exam pattern on the corresponding AajExam exam page for details.