why we are traking third case that is s and h together they are not alike?
I think he meant H occur seperately together and S occur seperately together in one word only.
Then will it not only 7 factorial gor first case??
sorry bro i didn't got what you mean
In my answer calculate the value for each case and then do this (1)+(2)-(3)
For second word there is only one pair of alike letters so it is not that difficult
Got it now Chirag_Hegde