CAT4 Number Series 3

Question 1

What number comes next? 1, 1, 2, 3, 5, ?

Accepted Answer

8

Answer

Each term is the sum of the two before it, so 3 + 5 = 8.

Question 2

What number is missing? 12, ?, 24, 30, 36

Accepted Answer

18

Answer

The series increases by 6, so 12 + 6 = 18.

Question 3

What number comes next? 50, 45, 40, 35, ?

Accepted Answer

30

Answer

Each term drops by 5, so 35 - 5 = 30.

Question 4

What number comes next? 4, 8, 16, 32, ?

Accepted Answer

64

Answer

Each term doubles, so 32 x 2 = 64.

Question 5

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

Accepted Answer

30

Answer

Differences increase by 2 each time (4, 6, 8, 10), so 20 + 10 = 30.

CAT4 Practice Test