# Number Series Questions and Answers

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**Look carefully for the pattern, and then choose which pair of numbers comes next.**

11 16 21 26 31 36 41

### Answer & Explanation:

Answer: Option D

Explanation: In this simple addition series, each number is 5 more than the previous number.

3 8 13 18 23 28 33

### Answer & Explanation:

Answer: Option C

Explanation: In this simple addition series, each number is 5 greater than the previous number.

84 78 72 66 60 54 48

### Answer & Explanation:

Answer: Option B

Explanation: In this simple subtraction series, each number is 6 less than the previous number.

20 20 17 17 14 14 11

### Answer & Explanation:

Answer: Option E

Explanation: This is a simple subtraction with repetition series. It begins with 20, which is repeated, then 3 is subtracted, resulting in 17, which is repeated, and so on.

61 57 50 61 43 36 61

### Answer & Explanation:

Answer: Option E

Explanation: This is an alternating repetition series, in which a random number, 61, is interpolated as every third number into an otherwise simple subtraction series. Starting with the second number, 57, each number (except 61) is 7 less than the previous number.

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