MDCAT Logical Reasoning: Critical Thinking MCQs

MDCAT Logical Reasoning: Critical Thinking MCQs

1. Question 1

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

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

   Answer: 17

   Explanation: The pattern is adding 3 to the previous number. 14 + 3 = 17

2. Question 2

   Q2. Identify the next letter in the series: A, C, E, G, I, ?

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

   Answer: K

   Explanation: The pattern is incrementing by 2 letters in the alphabet. I + 2 = K

3. Question 3

   Q3. A series of symbols is given: ∆, ◇, □, ∆, ◇, ?. What comes next?

   • A) ◇
   • B) □
   • C) ∆
   • D) ○

   Answer: □

   Explanation: The pattern repeats every three symbols. ∆, ◇, □, then repeats. So, after ◇ comes □

4. Question 4

   Q4. The sequence of numbers is: 1, 2, 4, 8, 16. What comes next?

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

   Answer: 32

   Explanation: The pattern is doubling the previous number. 16 * 2 = 32

5. Question 5

   Q5. Given the series: 3, 6, 9, 12, 15, what is the next number?

   • A) 16
   • B) 18
   • C) 20
   • D) 21

   Answer: 18

   Explanation: The pattern is adding 3 to the previous number. 15 + 3 = 18

6. Question 6

   Q6. Identify the pattern in the series: 2, 6, 12, 20, 30, ?

   • A) 36
   • B) 42
   • C) 48
   • D) 60

   Answer: 42

   Explanation: The pattern is formed by adding 4, 6, 8, 10,. to the previous term. So, 30 + 12 = 42

7. Question 7

   Q7. A sequence is given as: 4, 9, 16, 25, 36. What comes next?

   • A) 49
   • B) 48
   • C) 45
   • D) 50

   Answer: 49

   Explanation: The pattern consists of squares of consecutive integers: 2^2, 3^2, 4^2, 5^2, 6^2, 7^2 = 49

8. Question 8

   Q8. The series is: 1, 3, 6, 10, 15. What is the next number?

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

   Answer: 21

   Explanation: The pattern is formed by adding consecutive integers: +2, +3, +4, +5, +6. So, 15 + 6 = 21

9. Question 9

   Q9. Given the sequence: F, J, N, R, ?. What comes next?

   • A) V
   • B) W
   • C) X
   • D) Y

   Answer: V

   Explanation: The pattern is incrementing by 4 letters in the alphabet. F + 4 = J, J + 4 = N, N + 4 = R, R + 4 = V

10. Question 10

    Q10. A series of numbers is: 10, 20, 30, 40, ?. What is the next number?

    • A) 50
    • B) 60
    • C) 70
    • D) 80

    Answer: 50

    Explanation: The pattern is adding 10 to the previous number. 40 + 10 = 50

11. Question 11

    Q11. The sequence given is: 5, 10, 15, 20, 25. What comes next?

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

    Answer: 30

    Explanation: The pattern is adding 5 to the previous number. 25 + 5 = 30

12. Question 12

    Q12. Identify the next symbol in the series: ↑, →, ↓, ←, ↑, ?

    • A) →
    • B) ↓
    • C) ←
    • D) ↔

    Answer: →

    Explanation: The pattern is a sequence of arrow directions. The sequence repeats every four arrows. So, after ↑ comes →

13. Question 13

    Q13. A number sequence is given as: 2, 4, 8, 16, ?. What is the next number?

    • A) 32
    • B) 48
    • C) 64
    • D) 128

    Answer: 32

    Explanation: The pattern is doubling the previous number. 16 * 2 = 32

14. Question 14

    Q14. The series is: 3, 9, 27, 81, ?. What comes next?

    • A) 243
    • B) 240
    • C) 81
    • D) 90

    Answer: 243

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

15. Question 15

    Q15. Given the sequence: B, D, F, H, ?. What is the next letter?

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

    Answer: J

    Explanation: The pattern is incrementing by 2 letters in the alphabet. H + 2 = J

16. Question 16

    Q16. A series of numbers is given: 1, 4, 9, 16, 25. What comes next?

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

    Answer: 36

    Explanation: The pattern consists of squares of consecutive integers: 1^2, 2^2, 3^2, 4^2, 5^2, 6^2 = 36

17. Question 17

    Q17. The sequence is: 21, 20, 18, 15, 11, ?. What comes next?

    • A) 6
    • B) 7
    • C) 8
    • D) 10

    Answer: 6

    Explanation: The pattern is formed by subtracting 1, 2, 3, 4, 5,. from the previous term. So, 11 - 5 = 6

18. Question 18

    Q18. Identify the next number in the series: 0.5, 1, 2, 4, 8, ?

    • A) 16
    • B) 12
    • C) 10
    • D) 6

    Answer: 16

    Explanation: The pattern is doubling the previous number. 8 * 2 = 16

19. Question 19

    Q19. A sequence is: 100, 90, 81, 73, 66, ?. What comes next?

    • A) 60
    • B) 59
    • C) 58
    • D) 57

    Answer: 60

    Explanation: The pattern is decreasing by 10, 9, 8, 7, 6,. So, 66 - 6 = 60

20. Question 20

    Q20. The series given is: 8, 6, 4, 2, 0, ?. What comes next?

    • A) -2
    • B) -1
    • C) 0
    • D) 2

    Answer: -2

    Explanation: The pattern is decreasing by 2. 0 - 2 = -2. USAT, HAT and MDCAT analytical sections repeat this pattern.