Learn tricks to multiply 3,4,5,6 or 7 digits number with 12,13,14,15.............19. Useful when you have to find 120 %, 130 %........ means 1.2 , 1.3 times.. Tricks will be useful to solve data interpretation problems. Data interpretation is integral part of any competitive exams. 20 to 25 % questions are from data interpretation section. Watch the video, learn the technique and practice to become master in calculations. You will also learn technique to find square of number ending with 25 squares of numbers containing 1s only.
