## Assumption, Type 2S, PT 3, LR1, #12

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lawschoolisfun2012

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### Assumption, Type 2S, PT 3, LR1, #12

So, you need to do a little bit of math to prove this question, can some help me out? The correct answer is D, which I got by process of elimination, but I don't fully understand it.

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### Re: Assumption, Type 2S, PT 3, LR1, #12

lawschoolisfun2012 wrote:So, you need to do a little bit of math to prove this question, can some help me out? The correct answer is D, which I got by process of elimination, but I don't fully understand it.

Did you pull this one out of a Testmasters book? I ask because you call it a 2s. Anyway, I don't have PT 3, but I have all the TM books. What lesson/page is it on? I may be able to help with that info.

lawschoolisfun2012

Posts: 99
Joined: Sun Aug 23, 2009 2:56 am

### Re: Assumption, Type 2S, PT 3, LR1, #12

in the book Lessons 6-9 (TM), number 83, page 41, it is about Photovoltaic power plants....does that help?

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### Re: Assumption, Type 2S, PT 3, LR1, #12

The problem is that the stimulus doesn't tell us anything about the efficiency of the traditional plants besides the fact that it has decreased in recent years. Without that information, one cannot conclude any relationship between the power needs of photovoltaic and traditional power plants besides the fact that one has increased in cost and the other has decreased.

D is the correct answer because it bridges the gap. It tells us what we need to know about the differences between photovoltaic and traditional power plants.

Say the cost of photovoltaic plants was \$100.00 dollars per second twenty years ago and the cost of traditional plants was only \$10.00 per second. At that point, traditional plants are 10x cheaper. However, 20 years later, the photovoltaic plants cost 10x less than before, leaving them at \$10.00 and on par with traditional. This wouldn't work because this would mean that the conclusion is false. Thus, the cost of photovoltaic power must have been less than \$100.00 per the hypothetical.