Basic Ability Number Series and Sequences Questions and Answers

Question 1

What is the next number in the following sequence: 3, 7, 15, 31, 63, ...?

Accepted Answer

127

Answer

94

Answer

126

Answer

131

Question 2

A warehouse employee is stacking boxes in a pyramid shape. The top layer has 1 box, the second layer has 4 boxes, the third has 9, and the fourth has 16. If this pattern continues, how many boxes will be in the seventh layer?

Accepted Answer

49

Answer

25

Answer

36

Answer

64

Question 3

Identify the missing number in the sequence: 5, 6, 8, 11, ?, 20.

Accepted Answer

15

Answer

14

Answer

16

Answer

17

Question 4

Which of the following sequences is a geometric progression?

Accepted Answer

81, 27, 9, 3, 1

Answer

1, 5, 9, 13, 17

Answer

2, 3, 5, 8, 13

Answer

1, 8, 27, 64, 125

Question 5

Find the next two numbers in the interleaved sequence: 10, 30, 12, 25, 14, 20, ?, ?

Accepted Answer

16, 15

Answer

15, 16

Answer

16, 25

Answer

18, 15

Question 6

The sequence 0, 1, 1, 2, 3, 5, 8, ... is a well-known mathematical sequence. What is its name?

Accepted Answer

Fibonacci Sequence

Answer

Arithmetic Sequence

Answer

Geometric Sequence

Answer

Triangular Numbers