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# Gmat prep DS 4

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Manager
Joined: 20 Mar 2005
Posts: 170
Followers: 2

Kudos [?]: 23 [0], given: 0

Gmat prep DS 4 [#permalink]  07 Nov 2007, 05:09
00:00

Difficulty:

(N/A)

Question Stats:

0% (00:00) correct 0% (00:00) wrong based on 0 sessions
please explain this ..i dont have the OA.
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Manager
Joined: 25 Jul 2007
Posts: 108
Followers: 1

Kudos [?]: 13 [0], given: 0

The first statement by itself doesnt tell you anything cos there is no numerical value given. Likewise with the second statement.

When taken together,
we have

x5=x4/2

and

x5=x4/(x4+1)

from the two statements, we get the value of x4. Once we have the value of x4, use statement 1 to work backwards to get x1.

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