In each series, look for the degree and direction of change between the numbers. In other words, do the numbers increase or decrease, and by how much

Look at this series: 2, 1, (1/2), (1/4), … What number should come next?

A. (1/3)

B. (1/8)

C. (2/8)

D. (1/16)

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## View Answer

### Answer & Explanation:

Answer: Option B

Explanation:

This is a simple division series; each number is one-half of the previous number.

In other terms to say, the number is divided by 2 successively to get the next result.

4/2 = 2

2/2 = 1

1/2 = 1/2

(1/2)/2 = 1/4

(1/4)/2 = 1/8 and so on.

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

A. 7

B. 10

C. 12

D. 13

## View Answer

### Answer & Explanation:

Answer: Option B

Explanation:

This is a simple alternating addition and subtraction series. In the first pattern, 3 is added; in the second, 2 is subtracted.

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

A. 20

B. 22

C. 23

D. 26

## View Answer

### Answer & Explanation:

Answer: Option B

Explanation:

This is an alternating number subtraction series. First, 2 is subtracted, then 4, then 2, and so on.

Look at this series: 22, 21, 23, 22, 24, 23, … What number should come next?

A. 22

B. 24

C. 25

D. 26

## View Answer

### Answer & Explanation:

Answer: Option C

Explanation:

In this simple alternating subtraction and addition series; 1 is subtracted, then 2 is added, and so on.

Look at this series: 53, 53, 40, 40, 27, 27, … What number should come next?

A. 12

B. 14

C. 27

D. 53

## View Answer

### Answer & Explanation:

Answer: Option B

Explanation:

In this series, each number is repeated, then 13 is subtracted to arrive at the next number.