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Discrete maths problem-counting

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tc
#1
Feb5-05, 03:35 AM
P: 7
how many bit strings of length 8 contain either three consecutive 0s or four consecutive 1s?
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matt grime
#2
Feb5-05, 03:47 AM
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P: 9,398
As ever inclusion-exclusion: the number with 3 consecutive 0s plus the number with 4 consecutive 1s over counts by how many?


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