<p>Hey as you can see I'm bored...so I started this thread. What you need to do is post your favorite or hardest math questions you've encountered on the SAT Math section...practice tests...actual test...anything.</p>
<p>Just follow this format and don't discuss problems just post.</p>
<p>Source: ex. Blue CB Book
Question: Insert question here.
Answer: Explantion of how to do it/ any tips and tricks to do it.</p>
<p>Please refrain from discussing problems....if you feel like you have a better way to do a certain problem just use the format above and in the answer, type in your way of doing it. I have created this thread in hopes of it making it a reference source for solving some of the "hardest SAT MATH" problems.</p>
<p>Thanks for cooperating</p>
<p>Nice thread..
anyone want to start?</p>
<p>Any last problem of a section that you have to do in about 30 seconds or less? (Sorry I'm still bitter about June 4)</p>
<p>I couldn't solve that last math grid-in on the june 4 test. it had the three sets A,B,C. i read it a few times, tried to translate it into some basic equations, and couldn't get it easily. I knew it was the hardest one in the section for me, so I just kind of wrote down 1/6 or something and closed my answer book. anybody know what the problem was?</p>
<p>I think it was 3/11. But it might have been 3/14. I don't remember. The key was to put real numbers for the three sets. I think I used 60 and 120. I had trouble with the last multiple choice on the first section. I went too slow on the easy ones, because stupid mistakes are usually what get me.</p>
<p>Which multiple choice are you referring to? Since we had the same version of the test, I might be able to help you on it.</p>
<p>It was the one about length of skid marks. I know now that the answer was 1/9. I just didn't have enough time on the test. I think I put 3. Hopefully the curve is forgiving, there were a couple pretty difficult questions on the math.</p>
<p>i put 3/47. i still don't see how it asked for only A and C. it was 3 for the numerator. im ****ed. im pretty sure it's 3/37 and not 3/11. i guess i read it wrong.</p>
<p>tyhere are a few SAT prob.s</p>
<p>You could be right amnesia. I remember 3 in the numerator. It's been a while since the test, and I havn't thought about the math too much.</p>
<p>maybe i was better off just guessing than trying to solve that A,B,C sets problem! It seems like many people who also tried to solve it still couldn't figure it out. I could discern, at the very least, that it was a tough one.</p>
<p>I'm pretty sure I got it right. However, I don't remember what I put. I do remember 3 in the numerator though.</p>
<p>lol great... people never listen to instructions. but anyway I guess since you screwed up the purpose of the thread I'll explain the set problem.</p>
<p>alright it went like this...
A = x number of stuffs
B = 2x
C = 1/4 of A + 1/3 of B = x/4 + 2x/3
C = 11x/12
so A/C (the percentage of set 'A' within C) = (x/4) / (11x/12) = 3/11</p>
<p>express e^lnx+1 as a Taylor Series about x=1</p>
<p>idk what you mean exactly but would it be ... ln(x+1) = x - x^2/2 + x^3/3 - x^4/4 ... etc?</p>
<p>Ugh, what are you guys talking about? Can someone post the QUESTION before the answers? >_<</p>
<p>alright alright here's a good one...well not really but for you novice - SAT folk...</p>
<p>x>0 and y > 0, x ^3 is half of x ^ 2, and y ^3 is one-third of y^2, what is the value of x + y?</p>
<p>first one to solve it in under 30 seconds gets a virtual cookie...with your "genuine" explanation please.</p>
<p>Alright, merud. That's the kind of stuff I always used the 'plug it in' method for. I seriously do not know how to do that mathematically!</p>
<p>also here are a couple</p>
<p>5 = m^x, what is 5m?</p>
<p>m^(x+1)
m^(x+2)
m^(x+5)
m^(5x)
m^(2x)</p>
<hr>
<p>Also width of reectange B is 30 percent less than that of Rectangle A. The length of Rec. B is 30 percent greater than that of Rec. A. The area of Rec B is WHAT percent less than that of Rec. A?</p>
<hr>
<p>If the dimensions of a rectangular prism are 5 x 8 x 10...what is the length of the diagnol from one corner to the opposite corner?</p>
<p>I'll explain in a bit...let some people try it. I'll show you how to solve all these problems in under 30 seconds. I suggest you get a ti-89 calc.</p>