MCQ on Number Series

Number Series:

A number series in reasoning is a sequence of numbers or letters that follow a specific pattern. The goal is to identify the missing or incorrect number in the series.

The arrangement of numbers in a certain order, in which some numbers are placed wrongly in the series and some numbers are missing is called a number series. Based on calculating the addition and subtraction of the numbers, candidates have to observe and find the accurate number to the series of numbers.

There is no set pattern for number series reasoning, and each question may follow a different type of pattern. Some types of number series include:

Addition series: The next number is obtained by removing specific integers based on a pattern.

Subtraction series: The numbers follow a pattern, and the candidate must identify the missing or incorrect number.

Division series: The type of a particular number is divided to get the next number.

Square series: Each number is a perfect square of a particular number pattern.

Cube series: The series consists of cubes of numbers in the same order, and the candidate must locate the missing or odd cube number.

Arithmetic series: The next term is obtained by adding or subtracting a constant number to the previous term.

1. Look at this series: 7, 10, 8, 11, 9, 12, … What number should come next?

A) 7

B) 10

C) 12

D) 13

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2. Look at this series: 36, 34, 30, 28, 24, … What number should come next?

A) 20

B) 22

C) 23

D) 26

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3. Look at this series: 3, 4, 7, 8, 11, 12, … What number should come next?

A) 7

B) 10

C) 14

D) 15

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4. Look at this series: 14, 28, 20, 40, 32, 64, … What number should come next?

A) 52

B) 56

C) 96

D) 128

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5. Look at this series: 2, 6, 18, 54, … What number should come next?

A) 108

B) 148

C) 162

D) 216

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6. Look at this series: 8, 6, 9, 23, 87, … What number should come next?

A) 128

B) 226

C) 324

D) 429

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7. Find what number would come in place of the question mark(?).

2, 5, 12.5, ?, 78.125, 195.3125

A) 31.25

B) 40.25

C) 32.5

D) 21

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8. Find what number would come in place of the question mark(?).

-10, -8, 6, 40, 102, ?

A) 105

B) 117

C) 216

D) 200

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9. Find what number would come in place of the question mark(?).

25, 49, 121, 169, ?

A) 225

B) 256

C) 289

D) 361

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10. Find the number that will come in the place of the question mark in the given series

4, 18, ? , 100, 180, 294, 448

A) 62

B) 86

C) 38

D) 48

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