on the shelf there are 4 mathematic books and 8 english books. what is the probability that all the mathematics books will not be together?
(ans: 54/55)
please explain! i dont understand thos topic very well.

Question

on the shelf there are 4 mathematic books and 8 english books. what is the probability that all the mathematics books will not be together?
(ans: 54/55)
please explain! i dont understand thos topic very well.

baldymcgee6 · Answer

1 - the probability of the math books being together = the probability of the math books NOT being together

baldymcgee6 · Answer

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baldymcgee6 · Answer

there are 12 spots that need to be filled

anonymous · Answer

and then?