CSEET Logical Reasoning – Pattern Completion MCQs with Answers & Explanations

CSEET Logical Reasoning – Pattern Completion  MCQs with Answers & Explanations)

1.Find the missing number:

2, 6, 12, 20, 30, ?

A) 40

B) 42

C) 50

D) 56

Answer: B) 42

Explanation: The pattern is +4, +6, +8, +10, +12 → So, 30 + 12 = 42.

2.Find the next number in the series:

5, 10, 20, 40, ?

A) 45

B) 60

C) 80

D) 100

Answer: C) 80

Explanation: Each term is multiplied by 2 → 5×2=10, 10×2=20, 20×2=40, 40×2=80.

3.Complete the pattern:

A, D, I, P, ?

A) U

B) V

C) W

D) X

Answer: D) X

Explanation: Letter positions → A(1), D(4), I(9), P(16), X(24). Pattern = +3, +5, +7, +8 (near square pattern).

4.Find the missing term:

3, 9, 27, ?, 243

A) 54

B) 81

C) 108

D) 162

Answer: B) 81

Explanation: Multiplying by 3 each time → 3×3=9, 9×3=27, 27×3=81, 81×3=243.

5.Complete the sequence:

1, 4, 9, 16, 25, ?

A) 30

B) 35

C) 36

D) 49

Answer: C) 36

6.Find the missing number:

11, 14, 19, 26, 35, ?

A) 45

B) 46

C) 47

D) 48

Answer: C) 47

Explanation: Differences = +3, +5, +7, +9, +11 → So, 35+12=47.

7.Find the missing term:

Z, X, U, Q, ?

A) M

B) N

C) O

D) P

Answer: A) M

Explanation: Alphabet positions: Z(26), X(24), U(21), Q(17) → -2, -3, -4, -5 → Next is M(13).

8.Find the next term:

1, 2, 6, 24, 120, ?

A) 240

B) 480

C) 720

D) 840

Answer: C) 720

Explanation: Factorial pattern → 1!, 2!, 3!, 4!, 5!, 6! → next is 6! = 720.

9.Complete the pattern:

A1, B2, C3, D4, ?

A) E5

B) E4

C) F5

D) F6

Answer: A) E5

Explanation: Both letters and numbers increase by +1 each step.

10.Find the next term:

3, 8, 15, 24, 35, ?

A) 40

B) 48

C) 50

D) 60

Answer: B) 48

Explanation: Differences = 5, 7, 9, 11 → next +13 → 35+13=48.

11.Find the missing number:

10, 20, 40, 80, ?

A) 120

B) 150

C) 160

D) 200

Answer: C) 160

Explanation: Each number doubles the previous → ×2 pattern.

12.Find the next letter:

B, E, H, K, N, ?

A) Q

B) R

C) S

D) T

Answer: A) Q

Explanation: Each letter’s position increases by 3: 2, 5, 8, 11, 14, 17 → 17th letter is Q.

13.Find the next number:

1, 3, 7, 15, 31, ?

A) 45

B) 55

C) 63

D) 65

Answer: C) 63

Explanation: Each term = (previous × 2) + 1 → 31×2+1=63.

14.Find the missing number:

7, 14, 28, 56, 112, ?

A) 124

B) 160

C) 200

D) 224

Answer: D) 224

Explanation: Each number ×2 → 7×2=14, 14×2=28, 28×2=56, 56×2=112, 112×2=224.

15.Complete the pattern:

A, C, F, J, O, ?

A) T

B) U

C) V

D) W

Answer: B) U

Explanation: Position increments: +2, +3, +4, +5, +6 → A(1)+2=3(C), +3=6(F), +4=10(J), +5=15(O), +6=21(U).