# Calculation Techniques

Despite the trend at CAT having shifted from easy-to-understand-data-with-difficult-calculations to more logical questions with lesser calculations, it is not advisable to sit for CAT without being reasonably good at quick calculations and approximations.The importance of a good calculation speed can be understood with the following statistics:

= 4â€“5 calculation

= 60 â€“ 75 calculations

= 360 â€“ 450 secs

= 6 â€“ 7:30 minutes

= 6 â€“ 7:30 minutes

Now if we double our calculation speed, we would have 3-4 minutes of extra time. What leverage can be taken from this â€˜generated timeâ€™ depends totally upon the caliber of the student. Even if a student solves only one question than what he actually would have, and gets it right; the percentile in DI might differ by 1â€“2 percentile.

Following are the most frequent type of calculations done at CATâ€”

Following are the most frequent type of calculations done at CATâ€”