permutation and combination

hey,i have my xam 2mrw and i am not able 2 solve dese ques can u help me out wid d soln????1)1)how many ways are there for a horse race with 4 horses to finish if ties are posibble?2)how many bit strings contain exactly eight 0s and 1 1s if every 0 must be immediately followed by a 1?3)how many bit string of length 10 contain atleast three 1s and atleast three 0s?4)how many bit strings of length 8 contain either 3 consecutive 0s or four consecutive 1s? 5)how many bit strings contain exactly eight 0s and 10 1s if every 0 must be immediately followed by a 1?

Re: permutation and combination

Quote:

Originally Posted by

**panelopy123** hey,i have my xam 2mrw and i am not able 2 solve dese ques can u help me out wid d soln????1)1)how many ways are there for a horse race with 4 horses to finish if ties are posibble?2)how many bit strings contain exactly eight 0s and 1 1s if every 0 must be immediately followed by a 1?3)how many bit string of length 10 contain atleast three 1s and atleast three 0s?4)how many bit strings of length 8 contain either 3 consecutive 0s or four consecutive 1s? 5)how many bit strings contain exactly eight 0s and 10 1s if every 0 must be immediately followed by a 1?

Please edit this post. Put it into standard English. Separate all the question. Get rid "board speak".

In other words, **make it readable**.