Hi guys,
Just failed the Optiver test today

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Here's what it looks like:
1. There are 80 questions in 8 minutes (that point should be clear by now)
2. The questions are very mixed; they're not all like a + b = ?, but rather ? + b = c, a / ?= c, ? * a = c and so on.
3. Furthermore, the fractions are killing, especially because they're never in their most simple form; let's say the correct answer is 3, among the possible choices you may have 6/2, 81/27 or some other shit like that.
4. The additions are fine, I didn't encounter any decimals, they're mostly 2x2 and 3x3 additions.
5. The multiplications and divisions are pretty tricky, in that they're something like 0.18/0.3, with possible answers 0.6, 0.06, 6 and 1.67 (0.6 is the correct answer); in the rush of the moment is definetely easy to get mixed up between 0.6 and 0.06, especially taking into account point 6, below.
They're always decimal (up to three decimals) multiplications/divisions (.006 * .5, .4 * .03) and divisions, only two or four "classical" ones, like 54 / ... = 9 and ... * 13 = 104.
6. There are 2 sheets of paper: one with the questions and one with the answers. It's a pain in the ass to compute the thing, identify the correct answer then cross the corresponding letter on the answer sheet. In between these steps, lots of mistakes can be made.
So my advice to whoever is interested, is to do the
http://www.dennisfleurbaaij.com/mathtest.php tests for 3-4 days, until you can get to 60 answered questions with 2-3 wrong ones, then get yourself two pieces of paper and basically replicate what I've just said.
The
http://www.dennisfleurbaaij.com/mathtest.php tests are way too difficult for what's required, namely simpler computations and especially the ability to transcribe the answers correctly.
Let me know whether you have any more questions,