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The letters of the word RANDOM are written in all possible orders and these words are written out as in a dictionary then the rank of the word RANDOM is

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a
614
b
615
c
613
d
616

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detailed solution

Correct option is A

A D M N O R (in order)Number of words beginning withA _ _ _ _ _ = 5!D _ _ _ _ _ = 5!M _ _ _ _ _ = 5!N _ _ _ _ _ = 5!O _ _ _ _ _ = 5!R A D _ _ _ = 3!R A M _ _ _ = 3!R A N D M O = 1R A N D O M = 1___________________∴ Rank of word RANDOM = 614


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