x - selling price
150 - original price
0.4 = 40%

So just read the wording:

x = 150 + 0.4x
0.6x = 150
x = 250

250 - 150 = 100

right?

My Kaplan subscription expires in 20 hours, and I had 2 things unfinished there. I logged in and finished them. What can I say after three months total preparations (two of Kaplan and month of OG). OG questions are way more logical and easier in a way. I am greateful to Kaplan for giving me strategi...

Thank you Eric. So you're saying I shouldn't do 3 tests (as I have planned) this week? I'm pounding the OG, and creating a flashcard for every problem I got wrong; in your opinion, is the a danger of overstudying or something like that?

Thank you again.

Thank you Guest. I'm studying like a mad man, and thinking the same. I'll do 6-8 hours each day this coming week, 3 more cats, and then stare at the flash cards all sunday, sleep, eat, watch a movie on monday, and go take it up the .. on tuesday, the 13th. More advice and strategies for my last week...

Please answer, someone!

guys, I don't understand how you get this:

(1/L) + (1/J) = 1
So, (1/J) = (x-3)/x

I end up with something else when subbing.

I got stuck on this problem (the circle) a few days ago as well. I derived a rule from it, that in questions like that, if the angle is 90 degrees, the points won't me mirrow opposite, but will be reverse mirrow opposite. Maybe this sounds like BS, but if you try to draw it carefully a few times and...