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Class 14
REASONING
15 16 20 28 45 70 106...

15 16 20 28 45 70 106

A

20

B

45

C

16

D

28

Text Solution

Verified by Experts

The correct Answer is:
D
The given sequence of number follows the pattern : `+1^(2), +2^(2), +3^(2), +4^(2), +5^(2), +6^(2)`

`therefore 20+3^(2)=29`
Therefore, .29. should be in place of .28,.
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Knowledge Check

  • Select the number that can replace the question mark (?) in the following series. 16, 20, 29, 45, 70, ?

    A
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    B
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    C
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    D
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  • Study the following information to answer the questions given below it. A number sorting machine, when given an input of numbers, rearranges the numbers in a particular manner step by step indicated below-- till all the numbers are arranged in a particular order. {:("input : 29 2 15 5 20 11 50 105 28 19 30 140"),("Step I : 2 29 15 5 20 11 50 105 28 19 30 140"),("Step II : 2 140 15 5 20 11 50 105 28 19 30 29"),("Step III : 2 140 5 15 20 11 50 105 28 19 30 29"),("Step IV : 2 140 5 105 20 11 50 15 28 19 30 29 "),("Step V : 2 140 5 105 11 20 50 15 28 19 30 29"),("Step VI : 2 140 5 105 11 50 20 15 28 19 30 29"),("Step VII: 2 140 5 105 11 50 15 20 28 19 30 29"),("Step VIII : 2 140 5 11 50 15 30 28 19 20 29"),("Step IX: 2 140 5 105 11 50 15 30 19 28 20 29"),(" Step X: 2 140 5 105 11 50 15 30 19 29 20 28"):} Which of the following will be the V^("th") step for the following input ? Input : 15, 19, 90, 3, 50, 16, 4, 99, 91

    A
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    B
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    C
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    D
    Cannot be determined

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    A
    19 16 159 40 162 80 160 161
    B
    162 16 40 19 161 159 80 160
    C
    80 159 19 16 40 160 161
    D
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