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1.1                           COUNTING COMBINATIONS










                  Combinations  are a way  of  counting  how  many  different  ways  an  object  can  be

                  selected.
                  Let us understand by an example the different  combinations  of number

                  50 using  numbers 40, 20 and 10.






                                                                                    The order of selection
                       40               10
                                                                                 while making combination
                                                                                       does not matter.







                       20               20              10











                       20               10              10              10











                       10               10              10              10               10










                  Hence, we can observe that there are total five different  combinations of 50.
                  Hence, we can make combinations of any number using the above method.




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