Only 5% of People Can Solve This Brain Teaser – Test Your IQ with This Tricky Logic Question

41)Find the missing number.
2, 6, 12, 20, 30, ?

A) 36

B) 40

C) 42

D) 44 1×2=2, 2×3=6, 3×4=12, 4×5=20, 5×6=30, 6×7=42.

View Answer

C) 42
Explanation:Pattern \(n(n+1)\):
42)Which number is different?
16, 25, 36, 49, 54

A) 16

B) 36

C) 49

D) 54

View Answer

D) 54
Explanation:All others are perfect squares except 54.
43)What is the next number?
10, 20, 30, 40, ?

A) 45

B) 50

C) 55

D) 60

View Answer

B) 50
Explanation:Add 10 each time → 50.
44)Which number replaces ?
2, 5, 9, 14, 20, ?

A) 26

B) 27

C) 28

D) 29

View Answer

B) 27
Explanation:Differences +3, +4, +5, +6 → next +7 → 27.
45)If 4 + 4 = 32, 5 + 5 = 50, what is 6 + 6?

A) 60

B) 72

C) 80

D) 96 4×8=32, 5×10=50, 6×12=72.

View Answer

B) 72
Explanation:Pattern: a + a = a × (a + a)
46)Which number is the largest?

A) 0.9

B) 0.09

C) 0.99

D) 0.909

View Answer

C) 0.99
Explanation:Compare decimals → 0.99 is largest.
47)Find the missing number.
5, 15, 45, 135, ?

A) 270

B) 305

C) 405

D) 505

View Answer

C) 405
Explanation:Multiply by 3 each step → 405.
48)What is the next number?
2, 4, 8, 16, ?

A) 24

B) 28

C) 32

D) 36

View Answer

C) 32
Explanation:Powers of 2 → \(2^1,2^2,2^3,2^4\) → next \(2^5=32\).
49)Which number replaces ?
11, 22, 33, 44, ?

A) 55

B) 56

C) 57

D) 58

View Answer

A) 55
Explanation:Add 11 each step.
50)If 9 pencils cost ₹27, what is cost of one pencil?

A) ₹2

B) ₹3

C) ₹4

D) ₹5

View Answer

B) ₹3
Explanation:₹27 ÷ 9 = ₹3.
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