Number Series Reasoning

Number series is the most important chapter of reasoning.

Number series is easy to learn - You will enjoy it.

Following are the different type of Number series.

Prime Series
Difference Series
Product Series
Binary Series
Combination Series
Miscellaneous Series

Prime Series

Before going to the example of prime series you must have knowledge about the prime number.

A prime number is a number greater than 1, whose only have two factors that are 1 and itself. Some Prime numbers example are 2, 3, 5, 7, 11, 13, 17, 19, 23, and 29.

1. 7,11,13,17,19,______

A)21

B)23

C)24

D)27

B)23

2. 4,6,9,14,21,______

A)32

B)24

C)26

D)23

A)32

3. 169,121,49,25,______

A)3

B)8

C)9

D)18

C)9

Answer: C)9

Here the numbers are squares of consecutive primes i.e. 13²,11²,7²,5²___
the required term is 3²=9

4. 8,27,125,343,______

A)512

B)729

C)1000

D)1331

Answer: D)1331

Here the numbers are cubes of consecutive primes i.e 2³,3³,5³,7³,___
the required term is 11³=1331

5. 5,6,10,19,35,______

A)55

B)60

C)65

D)50

Answer: B)60

Here the difference between 5 and 6 is 1 i.e. 1²
between 6 and 10 is 4 i.e. 2² So last one becomes 5² So the final answer is 35+5²=60

Exercise

Exercise 1

Exercise 2