In order to crack XAT, you should first know how the exam is different from others. In XAT, the Quantitative Ability and Data Interpretation questions are in one section. The second section is English Usage (EU) and RC. The third section is Analytical Reasoning (AR) and Decision Making
In the recent past, the XAT has had more questions than the CAT exam to be solved in lesser time. While in the CAT exam it may be possible to get a decent shot at all questions, in XAT it is more advisable to drop tough looking questions, and find the easier ones to solve.
Thus, selection of easier questions is very important, which are very well inserted between the tougher questions, the reason for the perception of XAT being a tougher nut to crack than CAT.
For example, one can easily find simpler questions based upon algebra and trigonometry, between two questions which might involve application of calculus. Though the questions based upon calculus and functions are themselves on decline as observed in the past.
Thus, XAT primarily tests three areas - your decision making abilities, working under pressure and deadlines, and the ability to capitalize on ones' strengths.
The statistics which states that only 1 of 250 candidates makes it into XLRI can rattle any candidates, but if the number of serious aspirants is taken into account, it would drastically fall. You should understand that this exam is designed to measure your ability of maintaining a level head under pressure.