WHILE STUDYING ANY TOPIC MAKE SURE THAT AVOID MULTIPLE SOURCES. INSTEAD PICK UP ONE STANDARD SOURCE AND THE CONTENT OF WHICH YOU CAN COMPREHEND. READ IT MULTIPLE TIMES...FRAME A PICTURE IN MIND....ANALYSE...
Always use simple and easy fastest steps to solve a problem . As each questtion involves simple basic calculation like Addition,Subtraction , Multiplication , Division . Dont go for all calculation using...
Fundamental Principle of Counting/Multiplication rule Q1) How many numbers greater than 999 but not greater than 5000 be formed using the digits 0,1,2,3,4 and 5 if (a) repetition of digits is allowed...