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  #1  
Old April 30th, 2011, 04:54 AM
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Question What is the next number in this series ??

Check the following series and predict the next 3-4 numbers .. Also, if you can figure it out, what is the relation between these numbers ?? what is the formula?

81
45.5
81
45.5
10
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  #2  
Old April 30th, 2011, 05:26 AM
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Re: What is the next number in this series ??

11.3
........
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  #3  
Old April 30th, 2011, 05:29 AM
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Re: What is the next number in this series ??

How so ? ...
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Old April 30th, 2011, 06:15 AM
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Re: What is the next number in this series ??

Quote:
Originally Posted by raniraja View Post
Check the following series and predict the next 3-4 numbers .. Also, if you can figure it out, what is the relation between these numbers ?? what is the formula?

81
45.5
81
45.5
10
5.62
10
5.62
2.2

Right?
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  #5  
Old April 30th, 2011, 06:28 AM
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Re: What is the next number in this series ??

Or it could be
64
34.4
64
34.4
8
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  #6  
Old April 30th, 2011, 10:34 AM
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Re: What is the next number in this series ??

How so? ...
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  #7  
Old April 30th, 2011, 10:49 AM
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Re: What is the next number in this series ??

Quote:
Originally Posted by raniraja View Post
Check the following series and predict the next 3-4 numbers .. Also, if you can figure it out, what is the relation between these numbers ?? what is the formula?

81
45.5
81
45.5
10

if you subtarct 35.5 from 81 it gives 45.5 n when you add it , it gives 81 again. When subtract 35.5 from 45.5 it gives 10 now add it.... next number should be 45.5

Im a genious yay
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  #8  
Old April 30th, 2011, 10:44 PM
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Re: What is the next number in this series ??

Its a harmonic series .... j/k

Raniraja can you please tell us the answer to it?
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  #9  
Old May 1st, 2011, 03:13 AM
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Re: What is the next number in this series ??

Quote:
Originally Posted by soniya 2 View Post
Its a harmonic series .... j/k

Raniraja can you please tell us the answer to it?
i think its a platonic one.
if it was a simple harmonic or geometric type, it would not have been posted on echarcha.
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  #10  
Old May 1st, 2011, 08:23 AM
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Re: What is the next number in this series ??

The series goes like this...

81
45.5
81
45.5
10
10
-4.2
-18.4
-32.6
-46.8



Don't ask me the formula, tell me how these numbers are derived. I couldn't work it out.
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  #11  
Old May 1st, 2011, 10:16 AM
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Re: What is the next number in this series ??

Quote:
Originally Posted by raniraja View Post
The series goes like this...

81
45.5
81
45.5
10
10
-4.2
-18.4
-32.6
-46.8


Don't ask me the formula, tell me how these numbers are derived. I couldn't work it out.
yeh kya hai
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  #12  
Old May 1st, 2011, 10:24 AM
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Re: What is the next number in this series ??

Okay after that ten ...subtarct 14.2 from 10 it gives -4.2 right then add -4.2 n -14.2 it gives you -18.4 , then add -18.4 to -14.2 it gives you -32.6 keep adding -14.2 to the previous answer.
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