How to Prepare for Aptitude - We recommend that the best way to prepare for Aptitude tests is to solve as many questions as possible. You should always keep a timer for timing your speed. What about downloading one of our SyBooks for self-test? Each SyBook contains five tests of 15 minutes duration each. And you get the solution to each question at the end of the test. SyBooks have a built-in timer, can be read offline, can be shared among friends as well !