How many words begin with d or e and end in b or a

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Reference no: EM131239794

Consider the alphabet A, B, C, D, E, F and make words without repetition of letters allowed.

(a) How many six-letter words are there?

(b) How many words begin with D or E?

(d) How many words begin with D or E and end in B or A?

(e) How many have first letter neither D nor E and last letter neither B nor A?

Reference no: EM131239794

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