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24 Jun 2007, 00:44
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Archived Topic
Hi there,
This topic has been closed and archived due to inactivity or violation of community quality standards. No more replies are possible here.
Where to now? Join ongoing discussions on thousands of quality questions in our Data Sufficiency (DS) Forum
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24 Jun 2007, 15:42
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I'm going with E.
you can do the math fairly easily on this one if you understand the problem. Remember that on the GMAT, all variables always stand for the same thing. So k in the equation for C is the same k as in the revenue equation.
We know that the cost function is C=kx+t, and in this case, x is 1000. So we're missing k and t. We also know the sales price of each unit is k + 60. But we still don't know k.
Statement 1 tells us enough information to get K, but not t, so while we know the revenues from the sale, we don't know the cost yet, so we can't talk about profit.
Statement 2 also only tells us what k is. Here is the equation I wrote:
1000k + t - 45,000 = 500k + t
When you solve, you get k = 90, but still no t.
Together, you have k, which is 90, but still no t.
So it's E.
you can do the math fairly easily on this one if you understand the problem. Remember that on the GMAT, all variables always stand for the same thing. So k in the equation for C is the same k as in the revenue equation.
We know that the cost function is C=kx+t, and in this case, x is 1000. So we're missing k and t. We also know the sales price of each unit is k + 60. But we still don't know k.
Statement 1 tells us enough information to get K, but not t, so while we know the revenues from the sale, we don't know the cost yet, so we can't talk about profit.
Statement 2 also only tells us what k is. Here is the equation I wrote:
1000k + t - 45,000 = 500k + t
When you solve, you get k = 90, but still no t.
Together, you have k, which is 90, but still no t.
So it's E.
Archived Topic
Hi there,
This topic has been closed and archived due to inactivity or violation of community quality standards. No more replies are possible here.
Where to now? Join ongoing discussions on thousands of quality questions in our Data Sufficiency (DS) Forum
Still interested in this question? Check out the "Best Topics" block above for a better discussion on this exact question, as well as several more related questions.
Thank you for understanding, and happy exploring!
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