Number series/simplification short tricks/shortcuts-Part-2 for all government exam preparation

Divisibility rules by Third category(5,10):-

Divisibility rule by 5:-

                                If the last digit of the number contains 0 or 5 then only the number divisible by 5

             Example: 54625860/5

                                In above question, the last digit of the number is 0 So that the number(54625860) is divisible by 5.

Divisibility rule by 10:-

                                If the last digit of the number contains 0 then only the number divisible by 10

             Example: 14526380/5

                                In above question, the last digit of the number is 0 So that the number(14526380) is divisible by 10.

Divisibility rules by Fouth category(11):-

                               In this we need to first start counting from the right side after that we do the subtraction of Sum of numbers in Odd places-Sum of numbers in Even place then we get some result. If the result divisible by 11 then the whole number will be divisible by 11

             Example:  142318/11

     Result= (Sum of numbers in Odd places-Sum of numbers in Even place)/11
                   (8+3+4)-(1+2+1)
                 =11/11
                 =1

         In the above Question 142318 is divisible by 11 then the whole number is divisible by 11.


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