CAT4 Number Series 4

Question 1

What number comes next? 3, 7, 11, 15, ?

Accepted Answer

19

Answer

The series increases by 4, so 15 + 4 = 19.

Question 2

What number is missing? 1, 8, 27, ?, 125

Accepted Answer

64

Answer

These are cubes; 4 cubed = 64.

Question 3

What number comes next? 90, 81, 72, 63, ?

Accepted Answer

54

Answer

Each term decreases by 9, so 63 - 9 = 54.

Question 4

What number comes next? 2, 4, 8, 16, 32, ?

Accepted Answer

64

Answer

Each term doubles, so 32 x 2 = 64.

Question 5

What number is missing? 11, 22, 33, ?, 55

Accepted Answer

44

Answer

The series counts by 11, so the missing term is 44.

CAT4 Practice Test