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# Logical Reasoning :: Number Series

Home > Logical Reasoning > Number Series > General Questions

101. What is the next number of the following sequence.
4,2,36,4,5,1,36,16,6,3,81, ?

Explanation:

4+2=6, 6^2=36
4-2=2; 2^2=4
5+1=6; 6^2=36
5-1=4; 4^2=16
6+3=9; 9^2=81
6-3=3; 3^2=9

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102. What is the next number of the following sequence.
2,3,10,15,26,?

Explanation:

1*1+1=2,2*2-1=3,3*3+1=10,4*4-1=15,5*5+1=26,6*6-1=35

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103. What is the next number of the following sequence.
0.03,0.0018,0.00108,0.00648,0.3888,?

Explanation:

Multiply by 0.06,0.6,6,60,600
Ans 233.28

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104. What is the next number of the following sequence.
4,11,66,74,370,379,?

Explanation:

4, 11,11*6, 74,74*5, 379,379*4=1516

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105. What is the next number of the following sequence.
7,9,11,6,11,8,5,13,5,4,15,?

Explanation:

3 series 7,6,5,4
9,11,13,15
11,8,5,2

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106. What is the next number of the following sequence.
2,7,36,4,14,225,6,21,?

Explanation:

2+7=9 (9-3)^2=36
4+14=18 (18-3)^2=225
6+21=27 (27-3)^2=576

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107. What is the next number of the following sequence.
9,91,18,8,82,72,5,53,130,4,44

Explanation:

9 ,8,5,4
9-8=1
5-4=1
2. 91, 82, 53, 44
91-82=9
53-44=9
3. 18, 72, 130,...
18-72=-54
130-184=-54
So ans is 184

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108. What is the next number of the following sequence.
1/12,1/4,3/4,9/4,27/4,?

Explanation:

1/12
1/4=3/12,
3/4=9/12,
9/4=27/12,
27/4=81/12 so next term is 81/4

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109. What is the next number of the following sequence.
2, 7, -35, 7, 12, -60, 5, 10, ?

Explanation:

2 - 7 = - 5 7 * - 5 = - 35
7 - 12 = -5 12 * -5 = -60
5 - 10 = -5 10 * -5 = -50

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110. What comes next in the sequence?
7/2,29/4,22/2,59/4,37/2,89/4

Explanation:

The first series:(7/2,22/2,37/2,..) is like
7*1/2
7*3+1/2
7*5+2/2
so the next one would be,7*7+3/2 = 52/2

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