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Engineering, 05.06.2020 19:58 vickybarba025

How many different linear arrangements are there of the digits 1, 2, 3, 4, 5, 6 for which: (a)5 and 6 are next to each other ?

(b)5 is before 6?

(c)3 is before 4 and 5 is before 6?

(d) 3 and 4 are next to each other and 5 and 6 are also next to each other?

(e)6 is not last in line?

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How many different linear arrangements are there of the digits 1, 2, 3, 4, 5, 6 for which: (a)5 and...
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