<p>please post the weirdest/hardest math you have ever seen/solved....you know, getting a 800 in sat math also needs great luck along with skill.therefor,if u miss 1 que due to bad luck you are doomed.so please post ques so that we can get prepared for any problem</p>
<p>Gluttony</p>
<p>Well, this one isn't necessarily weird or hard, but it does require thinking out of the box:</p>
<p>Blue Book, Practice Test 5, Section 3, # 17 (pg. 657)</p>
<p>If p, r, and s are 3 different prime numbers greater than 2, and</p>
<p>n=p x r x s</p>
<p>then how many positive factors, including 1 and n, does n have?</p>
<p>^answer is 8,i guess</p>
<p>pr, rs, ps, p, r, s, n, 1</p>
<p>thats 8 positive factors right</p>
<p>this is an interesting problem i encountered on my math 2c test:
ahhhh what is it...i forget
oh i remember</p>
<p>(note that the answer choices aren't exactly the same, but the answer's there)
for what value of n will n^99+2n^98 be a perfect square?
a.28
b.30
c.31
d.34
e.42</p>
<p>^Oh man, I remember that problem. The answer's D.</p>
<p>And yeah, 8 is correct for the first one.</p>
<p>admonkey,is that a BB problem? test number and section please?</p>
<p>^ That's not a BB problem, gluttony. It was off the June SAT Math Level 2 Subject Test, you won't see anything like that on the SAT I Math.</p>
<p>no its not, i said its from my math 2c test.
its not released, at least i dont think so, its a question i remembered from my subject tests on june 08.</p>
<p>anyways, some other ones from my exams at school:
solve- (x+4)/(x+1)>(x+2)/(x+3)</p>
<p>actually, why am i even posting this, if you want the hardest/weirdest questions, go check out AMC and AIME.</p>
<p>^ what are AMC and AIME?</p>
<p>bb pg 738 #18 lol i got lost in the wording,but i think its really simple.
yet i dont understand XD</p>
<p>those are the math olympiad thingy; its like super hard math problems,but very interesting! =D
i agree u should check out artofproblemsolving . c o m
it has past amc problems, but those are really hard, they're like college alg level, very interesting.
but u wont see them on SAT, so u can do those for fun,but not for sat =p</p>
<p>would it be a good idea to plug and chug for adamonkey's 1st problem? whats the quickest way?</p>
<p>^ Plug and chug would overflow your calculator.</p>
<p>LOL If you wanna see actual tough questions go to goIIT</a> - IIT JEE - AIEEE Entrance - online test series - online coaching - Engineering Entrance Experts - Education Forum</p>
<p>yep artofproblemsolving too, and no, not all of them are college level :) For example, in india, you gotta solve most of such level questions in entrance exams to get into top univs like IIT (indian inst. of tech) :D</p>
<p>for what value of n will n^99+2n^98 be a perfect square?
a.28
b.30
c.31
d.34
e.42</p>
<p>n^99 + 2n^98 = n^98 (n + 2)
since n^98 is perfect square, we just require n+2 to be a perfect square too, so the answer is 34 as 34 + 2 is 36 which is a perfect square</p>
<p>see this :) Maths</a> & Physics - Solved Questions
Some of my solved questions, haven't got time to update for some time now, will do it soon.</p>
<p>(x+4)/(x+1)>(x+2)/(x+3)</p>
<p>(x+4)(x+3) > (x+2)(x+1)
x^2 + 7x + 12 > x^2 + 3x + 2
7x + 12 > 3x + 2
4x > -10
x > -10/4</p>
<p>Ah spidey, now you understand why I'm so thankful that I moved from India. If I had to take such a beastly exam to try for admission to IIT (compounded by the rampant corruption in the admissions system in India), I would be so mad.</p>
<p>i wanted only SAT l QUESTIONS</p>