CAT4 Number Series 2

Question 1

What number comes next? 3, 6, 12, 24, ?

Accepted Answer

48

Answer

Each term doubles, so 24 x 2 = 48.

Question 2

What number comes next? 1, 4, 9, 16, ?

Accepted Answer

25

Answer

These are perfect squares, so the next is 5 squared = 25.

Question 3

What number is missing? 7, 14, ?, 28, 35

Accepted Answer

21

Answer

The series counts up by 7, so the missing term is 21.

Question 4

What number comes next? 100, 90, 80, 70, ?

Accepted Answer

60

Answer

Each term decreases by 10, so 70 - 10 = 60.

Question 5

What number comes next? 2, 5, 11, 23, ?

Accepted Answer

47

Answer

Each term doubles and adds 1, so 23 x 2 + 1 = 47.

CAT4 Practice Test