IBA Karachi Aptitude Test analytical reasoning: Logical Problems MCQs

IBA Karachi Aptitude Test analytical reasoning: Logical Problems MCQs — sample questions

1. Question 1

   Q1. A sequence of numbers is given as 2, 5, 8, 11, 14. What is the next number?

   • A) 15
   • B) 17
   • C) 18
   • D) 20

   Answer: 17

   Explanation: The sequence is formed by adding 3 to the previous term. 14 + 3 = 17.

2. Question 2

   Q2. Identify the pattern in the given series: A, C, E, G, I. What comes next?

   • A) J
   • B) K
   • C) L
   • D) M

   Answer: K

   Explanation: The pattern is formed by consecutive odd letters. The next odd letter after I is K.

3. Question 3

   Q3. A series is given as 1, 2, 4, 8, 16. Determine the next number.

   • A) 32
   • B) 36
   • C) 48
   • D) 64

   Answer: 32

   Explanation: The series is a powers-of-2 sequence. 2^5 = 32. USAT, HAT and MDCAT analytical sections repeat this pattern.

4. Question 4

   Q4. The sequence of numbers is 3, 6, 12, 24, 48. What comes next?

   • A) 72
   • B) 80
   • C) 96
   • D) 100

   Answer: 96

   Explanation: The pattern is obtained by doubling the previous term. 48 * 2 = 96.

5. Question 5

   Q5. In a certain code, the sequence is given as $,#,@,!,*. What comes next if the pattern continues?

   • A) &
   • B) ^
   • C) %
   • D) +

   Answer: %

   Explanation: The pattern appears to be a sequence of special characters, and the next character is likely to be '%'.

6. Question 6

   Q6. The numbers are arranged as 4, 9, 16, 25, 36. Identify the next number.

   • A) 49
   • B) 45
   • C) 50
   • D) 64

   Answer: 49

   Explanation: The sequence consists of perfect squares. The next square after 6^2 = 36 is 7^2 = 49.

7. Question 7

   Q7. A sequence is defined by the formula 2n + 1. What is the fifth term?

   • A) 9
   • B) 10
   • C) 11
   • D) 12

   Answer: 11

   Explanation: For n = 5, 2n + 1 = 2*5 + 1 = 11.

8. Question 8

   Q8. The given series is 5, 10, 15, 20, 25. What is the next term?

   • A) 30
   • B) 35
   • C) 40
   • D) 45

   Answer: 30

   Explanation: The pattern is formed by adding 5 to the previous term. 25 + 5 = 30.

9. Question 9

   Q9. In the sequence 1, 4, 9, 16, 25, the next number is?

   • A) 36
   • B) 35
   • C) 38
   • D) 40

   Answer: 36

   Explanation: The sequence consists of perfect squares. The next square after 5^2 = 25 is 6^2 = 36.

10. Question 10

    Q10. The series is given as 2, 6, 12, 20, 30. Determine the next number.

    • A) 36
    • B) 42
    • C) 48
    • D) 50

    Answer: 42

    Explanation: The differences between successive terms are 4, 6, 8, 10, and the next difference should be 12. 30 + 12 = 42.

11. Question 11

    Q11. A particular sequence is 1, 3, 6, 10, 15. What comes next?

    • A) 20
    • B) 21
    • C) 22
    • D) 25

    Answer: 21

    Explanation: The pattern is formed by adding 2, 3, 4, 5, and so on. The next difference is 6, so 15 + 6 = 21.

12. Question 12

    Q12. In the given sequence, the numbers are 2, 4, 8, 16, ?. What is the missing number?

    • A) 32
    • B) 30
    • C) 28
    • D) 25

    Answer: 32

    Explanation: The sequence is obtained by doubling the previous term. 16 * 2 = 32.

13. Question 13

    Q13. The sequence of letters is F, G, H, I, J. What comes next?

    • A) K
    • B) L
    • C) M
    • D) N

    Answer: K

    Explanation: The pattern is a sequence of consecutive letters. The next letter after J is K.

14. Question 14

    Q14. The numbers are given as 1, 8, 27, 64, 125. Identify the next number.

    • A) 216
    • B) 225
    • C) 250
    • D) 256

    Answer: 216

    Explanation: The sequence consists of perfect cubes. The next cube after 5^3 = 125 is 6^3 = 216.

15. Question 15

    Q15. The sequence is 3, 9, 27, 81, ?. What is the next number?

    • A) 243
    • B) 240
    • C) 250
    • D) 256

    Answer: 243

    Explanation: The pattern is obtained by multiplying the previous term by 3. 81 * 3 = 243.

16. Question 16

    Q16. In a series, the numbers are 2, 3, 5, 7, 11. What comes next?

    • A) 13
    • B) 14
    • C) 15
    • D) 17

    Answer: 13

    Explanation: The sequence consists of prime numbers. The next prime number after 11 is 13.

17. Question 17

    Q17. The given sequence is 4, 7, 10, 13, 16. Determine the next number.

    • A) 19
    • B) 20
    • C) 21
    • D) 22

    Answer: 19

    Explanation: The pattern is formed by adding 3 to the previous term. 16 + 3 = 19.

18. Question 18

    Q18. A sequence is 1, 2, 6, 24, 120. What comes next?

    • A) 720
    • B) 600
    • C) 500
    • D) 480

    Answer: 720

    Explanation: The sequence consists of factorials. The next factorial after 5! = 120 is 6! = 720.

19. Question 19

    Q19. The numbers are arranged as 9, 16, 25, 36, 49. Identify the next number.

    • A) 64
    • B) 60
    • C) 65
    • D) 70

    Answer: 64

    Explanation: The sequence consists of perfect squares. The next square after 7^2 = 49 is 8^2 = 64.

20. Question 20

    Q20. In the sequence 2, 5, 10, 17, 26, what comes next?

    • A) 37
    • B) 35
    • C) 36
    • D) 38

    Answer: 37

    Explanation: The differences between successive terms are 3, 5, 7, 9. The next difference is 11, so 26 + 11 = 37.