Is the number of members of Club X greater than the number : DS Archive
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# Is the number of members of Club X greater than the number

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Intern
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Is the number of members of Club X greater than the number [#permalink]

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03 Oct 2004, 03:10
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Is the number of members of Club X greater than the number of members of Club Y ?
(1) Of the members of Club X, 20 percent are also members of Club Y.
(2) Of the members of Club Y, 30 percent are also members of Club X.
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03 Oct 2004, 03:35
C.

of course each one independently will not give anything.

for both looking at the intersection or members comon to X and Y

from (1) . intersection = 0.2 X
from (2). intersection = 0.3 Y

0.2X = 0.3 Y

this gives that memebres of X are greater than Y
03 Oct 2004, 03:35
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