***October 2013 - Mathematics Level 2***

<p>Yes, but was 15 one of the answer choices? It 25 and 15 were both there, they would both be right, which doesn’t make sense…</p>

<p>Danchu 27 is composite. 25 is wrong.</p>

<p>Ohhhh crap…sorry you guys are right. Now three wrong:(</p>

<p>They were both there. 25 is not right because 27 is not prime. Both the n-2 and n+2 numbers had to be prime for the answer to be a counter.</p>

<p>My brain was so messed up…how did I think 27 was prime…:(</p>

<p>Yeah, I think I counted that I had at least 3 wrong with around 3 omitted so far… ugh</p>

<p>What was the mark up percentage question. Dont remember an inch of it. Was it level 2 math?</p>

<p>The mark up percentage qn was one pf the earlier questions I hope.</p>

<p>Psych1 I believe it gave an original and marked up price and asked for the % markup. Pretty sure it was 45% but I guess that depends on what the question was actually asking. And yes it was math II.</p>

<p>Standardizethis,
thanks,Some recollection there. Its hard to fish it out of memory because the damn practice tests distort my memory of the actual test. Anyways was it in the first 20 odd qns or so?</p>

<p>thanks
10char</p>

<p>@psych1 I believe so since it was a pretty straightforward question.</p>

<p>@jibler I think it was an option</p>

<p>what was the answer to the wierd curvy graph, reflection against the origin?</p>

<p>IT WAS 15, think guys THINK. 13 and 17 are both prime. YES 25 was an answer, but it was not the BEST answer (as it says in the directions) because 27 is not prime, and the question specifically said “when n+2 and n-2 are prime, n is prime” so you had to find an example where n+2 AND n-1 are prime but n isn’t. Therefore, 15 is the best choice</p>

<p>already established that GranTurismo, didn’t need to type that</p>

<p>@Danchu
I think that question (if we’re thinking of the same thing) was a graph of x^3 slightly shifted from the origin. It asked for f^-1(x) which I found to be the third square root of x (someone correct me if I’m wrong, I haven’t done problems like this in a long time) and I graphed that and picked the answer choice that most resembled that graph.</p>

<p>I did the exact same thing as slothz.</p>

<p>Hey do any of y’all know how incomplete marks are scored? I bubbled in an answer in the last second but kind of half bubbled it. It was the correct answer so hopefully they can score it but if they can’t is it automatically wrong or is it counted as omitted?</p>

<p>Also I think danchu is asking about the one where answers were like f(-x), -f(x), -f(-x).</p>

<p>the term is “cube root of x” not “third square root of x”</p>

<p>Yea the inverse was the graph that looked like an elongated letter “S”. I got -f(-x) and do u guys remember the question for the 45% markup…I don’t remember the question</p>