Gmat prep DS 4 : DS Archive
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# Gmat prep DS 4

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07 Nov 2007, 05:09
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please explain this ..i dont have the OA.
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07 Nov 2007, 07:38
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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