Will they ask from these topics only?
In the Aptitude test they won't ask anything, rather it is basically an online test comprising of 3 sections - quants, verbal and english. Only multiple choice questions will be there which you'll have to answer with a stipulated time frame. The timer will be set on your computer screen. They will give aptitude questions from within the syllabus only, there's no chance of any out of syllabus question here.