LCM and HCF

Learn LCM and HCF and solve all the important questions related to LCM and HCF. In this post, I have explained several methods along with tricks and solved examples to find LCM and HCF. After reading this post you will be able to solve any kind of question-related to this topic in a few seconds.

Unit digit questions and cyclicity of numbers

unit digit problems and cyclicity

If I ask you to find the unit digit of 3^34, you will say impossible. But, I can guarantee you after reading this post you will be able to find unit digit of this number within 10 seconds. In this post, I have explained step by step how to find the unit digit when a number is raised to a large power.

Number of squares and rectangles in a grid

Can you find the total number of squares ina chessboard ( i.e. 8*8 grid ) within 30 seconds? In this post, I have explained various tricks and formulas to find number of square in a square, number of square ina rectangle, number of a rectangle in a rectangle, number of square in a rectangle. Also, a variety of examples are solved to give in-depth knowledge.