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# DS gmat prep - cost

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Manager
Joined: 20 Mar 2005
Posts: 169
DS gmat prep - cost [#permalink]

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06 Aug 2007, 05:35
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Senior Manager
Joined: 24 Nov 2006
Posts: 349
Re: DS gmat prep - cost [#permalink]

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06 Aug 2007, 09:39
(1) Profit = Revenues - Cost

(1) R = 1000(k+60) = 150000, then k=90. We need t as well. Insuff.

(2) (500k + t) + 45000 = 1000k + t, then k=90. We need t. Insuff.

(12) No data on t. Insuff. E.
Re: DS gmat prep - cost   [#permalink] 06 Aug 2007, 09:39
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