Reasoning Aptitude Verbal GK Quiz MORE
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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.

  1. Prime Series
  2. Difference Series
  3. Product Series
  4. Binary Series
  5. Combination Series
  6. 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