Crossover Aptitude Test Numerical Reasoning: Number Sequences 3

Question 1

What is the next number: 1, 1, 2, 6, 24, ?

Accepted Answer

120

Answer

Each term is multiplied by its position index: 24 × 5 = 120 (factorials: 0!, 1!, 2!, 3!, 4!, 5!).

Question 2

Find the missing number: 3, 9, 27, ?, 243

Accepted Answer

81

Answer

Each term is multiplied by 3 (powers of 3), so 27 × 3 = 81.

Question 3

What comes next: 2, 5, 11, 23, 47, ?

Accepted Answer

95

Answer

Each term is doubled and then 1 is added: (47 × 2) + 1 = 95.

Question 4

Which number is missing: 10, 20, 30, ?, 50, 60

Accepted Answer

40

Answer

These are multiples of 10 in order, so the missing value is 40.

Question 5

Find the next term: 256, 128, 64, 32, ?

Accepted Answer

16

Answer

Each term is halved, so 32 ÷ 2 = 16.

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