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Manager
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Set S consists of 5 consecutive integers, and set T consists [#permalink]
 04 Nov 2006, 04:25
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Set S consists of 5 consecutive integers, and set T consists of seven consecutive integers. Is the median of the numbers in set S equal to the median of the numbers in set T?
1) The median of the numbers in set S is O
2) The sum of the numbers in set S is equal to the sum of the numbers in set T
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Intern
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Set S consists of 5 consecutive integers, and set T consists of seven consecutive integers. Is the median of the numbers in set S equal to the median of the numbers in set T?
1) The median of the numbers in set S is O
2) The sum of the numbers in set S is equal to the sum of the numbers in set T
Here is how I see it...
1) S could be (-2, -1, 0, 1, 2)....but set T could be anything. INSUFFICIENT
2) Set S could be (5, 6, 7, 8, 9) with sum of 35 and median of 7
but....
Set T could be (2, 3, 4, 5, 6, 7, 8) with sum of 35 and median of 5 INSUFFICIENT
Combine: S must be (-2, -1, 0, 1, 2) with a sum of 0 and a median of 0
T must then have sum of 0, so T is (-3, -2, -1, 0, 1, 2, 3) sum 0 and median 0. SUFFICIENT
ANSWER: C
Uphill,
Is this reasoning helpful?
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Director
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My pick is B
only possible if sum is zero that s(-2,1,0,1,2) T(-3,-2,-1,0,1,2,3)
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SVP
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Set S consists of 5 consecutive integers, and set T consists of seven consecutive integers. Is the median of the numbers in set S equal to the median of the numbers in set T?
1) The median of the numbers in set S is O
2) The sum of the numbers in set S is equal to the sum of the numbers in set T
set s( s-2,s-1,s,s+1,s+2) set t (b-3,b-2,b-1,b,b+1,b+2,b+3)
from one
insuff if s = 0 b could be anything
from two
5s = 7b , if s = 7 then t = 5 or s, b = zero....insuff
both together
suff
my answer is c
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Director
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yezz wrote: Set S consists of 5 consecutive integers, and set T consists of seven consecutive integers. Is the median of the numbers in set S equal to the median of the numbers in set T?
1) The median of the numbers in set S is O
2) The sum of the numbers in set S is equal to the sum of the numbers in set T
set s( s-2,s-1,s,s+1,s+2) set t (b-3,b-2,b-1,b,b+1,b+2,b+3)
from one
insuff if s = 0 b could be anything
from two
5s = 7b , if s = 7 then t = 5 or s, b = zero....insuff
both together
suff
my answer is c
Thanks for expalnation yezz got this one wrong..
C must be answer
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SVP
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U R WELCOMED MY FRIEND . 
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Director
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I am so sorry - but I still do not see why B is not the answer??
_________________
...there ain't no such thing as a free lunch...
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