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Set S integers and set T consists of seven consecutive

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Manager
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Kudos [?]: 114 [0], given: 11

Set S integers and set T consists of seven consecutive [#permalink]

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New post 09 Jun 2009, 23:50
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Set S integers and set T consists of seven consecutive integers. Is the median of set consists of five consecutive S equal to the median of Set T.

(1) The median of set S is 0.

(2) The sum of numbers in set S is equal to the sum of numbers in set T.


Please discuss.

Kudos [?]: 114 [0], given: 11

Senior Manager
Senior Manager
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Joined: 15 Jan 2008
Posts: 281

Kudos [?]: 47 [0], given: 3

Re: Median DS [#permalink]

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New post 10 Jun 2009, 01:12
is it B ?

1, doesnt give any information about the numbers in Set T.

2, the numbers being consecutive makes life easier..

let S = { s, s+1, s+2, s+3, s+4, s+5, s+6 }
and T = { t, t+1, t+2, t+3, t+4, T+5, t+6}

sum of numbers in S = 7s + 21

sum of numbers in T = 7T + 21

as they are same we get s = t.

median in first set = 3+s
median in second set = 3+t = 3+ s.. which is equal..

Kudos [?]: 47 [0], given: 3

Director
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Kudos [?]: 883 [0], given: 56

Location: New Delhi
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Re: Median DS [#permalink]

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New post 10 Jun 2009, 02:16
Neochronic wrote:
is it B ?

1, doesnt give any information about the numbers in Set T.

2, the numbers being consecutive makes life easier..

let S = { s, s+1, s+2, s+3, s+4, s+5, s+6 }
and T = { t, t+1, t+2, t+3, t+4, T+5, t+6}

sum of numbers in S = 7s + 21

sum of numbers in T = 7T + 21

as they are same we get s = t.

median in first set = 3+s
median in second set = 3+t = 3+ s.. which is equal..


Please correct me if I'm wrong.
The option 2 is saying "median of set consists of five consecutive S".
Let this set be X, which is subset of S. But we don't know which five values comprises of X.

My answer would be E
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Kudos [?]: 883 [0], given: 56

Senior Manager
Senior Manager
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Joined: 15 Jan 2008
Posts: 281

Kudos [?]: 47 [0], given: 3

Re: Median DS [#permalink]

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New post 10 Jun 2009, 02:53
I see it now..

can someone post the actual question...

Does the set consists of 5 numbers or 7 numbers ?

and if the median specified is for any 5 of them or consecutive 5 numbers?

Kudos [?]: 47 [0], given: 3

Director
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Posts: 855

Kudos [?]: 472 [0], given: 7

Re: Median DS [#permalink]

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New post 10 Jun 2009, 04:53
Can you please post the question correctly?

Kudos [?]: 472 [0], given: 7

Manager
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Joined: 10 May 2009
Posts: 66

Kudos [?]: 114 [0], given: 11

Re: Median DS [#permalink]

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New post 10 Jun 2009, 04:58
Unfortunately I do not have the OA


Neochronic wrote:
I see it now..

can someone post the actual question...

Does the set consists of 5 numbers or 7 numbers ?

and if the median specified is for any 5 of them or consecutive 5 numbers?

Kudos [?]: 114 [0], given: 11

Re: Median DS   [#permalink] 10 Jun 2009, 04:58
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Set S integers and set T consists of seven consecutive

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