# Number Series 4

16) Find the next two numbers in the series, 16, 20, 46, 24, 28, 56, 32 _, _

1. 36, 66
2. 66, 36
3. 34, 62
4. 62, 34

Explanation:

In this series, every third number follows a different pattern; it begins with 46 then 10 is added to this number to arrive at the next number (56). The main series begins with 16 then 4 is added to each number to arrive at the next number. So, the next numbers are 36(32+4) and 66 (56+10).

17) Find the next number in the series 13, 17, 19, 23, 29, _.

1. 33
2. 35
3. 31
4. 37

Explanation:

The given series consists of consecutive prime numbers in increasing order, so the next number (prime number) would be 31.

18) Find the missing number in the series; 196, 169, 144, _, 100, 81.

1. 111
2. 131
3. 121
4. 141

Explanation:

The series consists of squares of consecutive natural numbers in decreasing order, i.e., the numbers 196, 169, 144, _, 100, 81 can be written as 142, 132, 122, 112, 102, 92. So, the missing number is 121.

19) Find the next number in the series 4, 6,8,9,10,12, _.

1. 14
2. 13
3. 15
4. 16

Explanation:

The series consists of consecutive composite numbers, so the missing number is 14.

20) Which number should come next in the series, 12, 36,109, 329, _?

1. 990
2. 900
3. 940
4. 890

Explanation:

12*3+0, 36*3+1, 109*3+2, 329*3+3, _ ,

Therefore, the next number would be, (329 * 3 +3) 990.

Number Series 1
Number Series 2
Number Series 3

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