Q.1 Find the next term in the series: A, C, F, J, O, ?
U
T
V
W
Explanation - The pattern is adding consecutive natural numbers to positions: A(1)+2=C(3)+3=F(6)+4=J(10)+5=O(15)+6=U(21).
Correct answer is: U
Q.2 Find the missing number in the series: 2, 6, 12, 20, 30, ?
40
42
44
36
Explanation - The pattern is n² + n: 1*2=2, 2*3=6, 3*4=12, 4*5=20, 5*6=30, 6*7=42.
Correct answer is: 42
Q.3 In the series Z, X, U, Q, ?, L, what comes in place of '?'?
M
O
R
N
Explanation - The letters decrease in positions: Z(26)-2=X(24)-3=U(21)-4=Q(17)-5=M(12)-6=L(12).
Correct answer is: M
Q.4 Find the missing term: 5, 9, 17, 33, ?
49
57
65
65
Explanation - Pattern: each term = previous term*2 - previous term incremented by 1. 5*2-1=9, 9*2-1=17, 17*2-1=33, 33*2-1=65.
Correct answer is: 65
Q.5 Complete the series: B, E, J, Q, ?
Y
Z
X
W
Explanation - The positions of letters: B(2)+3=E(5)+5=J(10)+7=Q(17)+9=Y(26).
Correct answer is: Y
Q.6 Find the missing number: 3, 5, 9, 17, 33, ?
49
65
67
61
Explanation - Each number doubles the previous and subtracts 1: 3*2-1=5, 5*2-1=9, 9*2-1=17, 17*2-1=33, 33*2-1=65.
Correct answer is: 65
Q.7 Find the next letter in the series: C, F, J, O, ?
T
U
S
V
Explanation - The differences in positions increase by 1: C(3)+3=F(6)+4=J(10)+5=O(15)+6=U(21).
Correct answer is: U
Q.8 What comes next in the series: 1, 4, 9, 16, ?
20
25
36
30
Explanation - These are perfect squares: 1²=1, 2²=4, 3²=9, 4²=16, 5²=25.
Correct answer is: 25
Q.9 Find the missing term: 2, 4, 8, 32, 256, ?
1024
2048
512
8192
Explanation - Pattern: 2¹=2, 2²=4, 2³=8, 2⁵=32, 2⁸=256, 2¹³=8192. Powers increase as 1,2,3,5,8,13 (Fibonacci sequence).
Correct answer is: 8192
Q.10 Find the missing letter: A, D, I, P, ?
X
Y
Z
W
Explanation - Positions: A(1)+3=D(4)+5=I(9)+7=P(16)+9=Y(25).
Correct answer is: Y
Q.11 Complete the series: 1, 3, 7, 15, 31, ?
62
63
64
61
Explanation - Pattern: Each term = previous*2 +1 → 1*2+1=3, 3*2+1=7, 7*2+1=15, 15*2+1=31, 31*2+1=63.
Correct answer is: 63
Q.12 Find the missing number: 2, 6, 12, 20, 30, ?
40
42
44
45
Explanation - Pattern: n*(n+1) → 1*2=2, 2*3=6, 3*4=12, 4*5=20, 5*6=30, 6*7=42.
Correct answer is: 42
Q.13 Find the next term: Z, X, U, Q, M, ?
G
H
I
J
Explanation - Positions decrease by increasing numbers: Z(26)-2=X(24)-3=U(21)-4=Q(17)-5=M(12)-6=G(7).
Correct answer is: G
Q.14 Complete the series: 5, 10, 20, 40, ?
60
70
80
80
Explanation - Each number is doubled: 5*2=10, 10*2=20, 20*2=40, 40*2=80.
Correct answer is: 80
Q.15 Find the missing number: 7, 14, 28, 56, ?
108
112
120
100
Explanation - Pattern: Multiply by 2 each time → 7*2=14, 14*2=28, 28*2=56, 56*2=112.
Correct answer is: 112
Q.16 Find the next letter: B, F, L, T, ?
Z
Y
X
W
Explanation - Positions: B(2)+4=F(6)+6=L(12)+8=T(20)+10=Z(26).
Correct answer is: Z
Q.17 Complete the series: 3, 6, 12, 24, ?
36
48
46
50
Explanation - Each term is multiplied by 2 → 3*2=6, 6*2=12, 12*2=24, 24*2=48.
Correct answer is: 48
Q.18 Find the missing number: 1, 2, 6, 24, 120, ?
720
600
650
7200
Explanation - Pattern: Factorial series → 1!=1, 2!=2, 3!=6, 4!=24, 5!=120, 6!=720.
Correct answer is: 720
Q.19 Find the next letter: A, C, F, J, O, ?
T
U
S
V
Explanation - Positions: A(1)+2=C(3)+3=F(6)+4=J(10)+5=O(15)+6=U(21).
Correct answer is: U
Q.20 Complete the series: 2, 5, 10, 17, ?
24
26
27
30
Explanation - Pattern: n² +1 → 1²+1=2, 2²+1=5, 3²+1=10, 4²+1=17, 5²+1=26.
Correct answer is: 26
Q.21 Find the missing term: 1, 8, 27, 64, ?
81
125
100
150
Explanation - These are perfect cubes: 1³=1, 2³=8, 3³=27, 4³=64, 5³=125.
Correct answer is: 125
Q.22 Complete the series: D, H, N, ?
Z
X
Y
V
Explanation - Positions increase alternatively: D(4)+4=H(8)+6=N(14)+8=V(22) following a loop back pattern.
Correct answer is: V
Q.23 Find the next term: 2, 3, 5, 9, 17, ?
31
33
35
34
Explanation - Pattern: Each term = previous*2 -1 → 2*2-1=3, 3*2-1=5, 5*2-1=9, 9*2-1=17, 17*2-1=33.
Correct answer is: 33
Q.24 Complete the series: 1, 4, 9, 16, 25, ?
36
30
32
40
Explanation - Perfect squares series: 1²=1, 2²=4, 3²=9, 4²=16, 5²=25, 6²=36.
Correct answer is: 36