Mensa IQ Test Mensa IQ Numerical Pattern Recognition Questions and Answers 2

Question 1

What is the missing number? 2, 6, 12, 20, 30, ?

Accepted Answer

42

Answer

Differences: 4, 6, 8, 10, 12. The pattern is consecutive even differences. 30+12=42.

Question 2

Find the missing number: 1, 4, 9, 16, 25, ?, 49

Accepted Answer

36

Answer

These are perfect squares: 1²=1, 2²=4, 3²=9, 4²=16, 5²=25, 6²=36, 7²=49.

Question 3

What replaces the ? [Row 1: 3, 5, 8] [Row 2: 4, 7, 11] [Row 3: 6, 9, ?]

Accepted Answer

15

Answer

In each row, the third number equals the first plus the second. Row 3: 6+9=15.

Question 4

Which number does not belong in this series? 2, 3, 5, 7, 11, 14, 13, 17

Accepted Answer

14

Answer

All other numbers are prime. 14 = 2×7, so it is composite and does not belong.

Question 5

Identify the rule and find the next term: 100, 50, 25, 12.5, ?

Accepted Answer

6.25

Answer

Each term is halved: 100÷2=50, 50÷2=25, 25÷2=12.5, 12.5÷2=6.25.

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