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There are 11 numbers in total, the sum of the least 6 numbers is 35, t
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14 Jun 2021, 07:34
14 Jun 2021, 07:34
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There are 11 numbers in total, the sum of the least 6 numbers is 35, the sum of the greatest 6 numbers is 125, the sum of the 11 numbers are 142, what is the median?
Re: There are 11 numbers in total, the sum of the least 6 numbers is 35, t
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21 Jun 2021, 00:07
21 Jun 2021, 00:07
2
This is a poorly constructed question. Not an ETS material. We may have to assume that all the nos are distinct.
Let's say those are \(N1, N2, ... N11\) in ascending order. So median value will be \(N6\)
The sum of the least \(6\) numbers is \(35\). So \(N1+N2+...+N6 = 35\) _________(1)
The sum of the greatest \(6\) numbers is \(125\). So \(N6+N7+...+N11 = 125\) __________(2)
By adding both the equation, we will get \(N1 + N2 + ... + N11 + N6 = 160\) (\(N6\) is in both so will be taken twice) ________(3)
The sum of the \(11\) numbers are \(142\)
\(N1 + N2 + ... + N11 = 142\) _________(4)
\((3) - (4)\)
\(N6 = 18 = median\)
Let's say those are \(N1, N2, ... N11\) in ascending order. So median value will be \(N6\)
The sum of the least \(6\) numbers is \(35\). So \(N1+N2+...+N6 = 35\) _________(1)
The sum of the greatest \(6\) numbers is \(125\). So \(N6+N7+...+N11 = 125\) __________(2)
By adding both the equation, we will get \(N1 + N2 + ... + N11 + N6 = 160\) (\(N6\) is in both so will be taken twice) ________(3)
The sum of the \(11\) numbers are \(142\)
\(N1 + N2 + ... + N11 = 142\) _________(4)
\((3) - (4)\)
\(N6 = 18 = median\)
arjunbir wrote:
can anyone please help me with the solution?
thank you
thank you
General Discussion
Re: There are 11 numbers in total, the sum of the least 6 numbers is 35, t
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14 Jun 2021, 09:09
14 Jun 2021, 09:09
1
Hi There!
Appreciate your effort to contribute on the forum!
But please make sure to read the forum rules you can find them here--> https://gre.myprepclub.com/forum/rules-for-posting-please-read-this-before-posting-1083.html . It would be of great help to you as well as to us.
P.s. Also post the answers(OA) or explanation(OE) after posting your question.
Let me know if you need any help!
Regards
Appreciate your effort to contribute on the forum!
But please make sure to read the forum rules you can find them here--> https://gre.myprepclub.com/forum/rules-for-posting-please-read-this-before-posting-1083.html . It would be of great help to you as well as to us.
P.s. Also post the answers(OA) or explanation(OE) after posting your question.
Let me know if you need any help!
Regards
