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If a dictionary is created in which only the letters of the wor OLYMPIAD are used then what is the rank of the word OLYMPIAD in that dictionary? (Topic: Permutation and Combination). Please reply me fast.

Posted by Kunal Rajour 7 years, 7 months ago

CBSE > Class 12 > Mathematics

2 answers

Rishabh Sahu 7 years, 7 months ago

Usually for such questions words without meaning are allowed in the dictionary.

Rishabh Sahu 7 years, 7 months ago

First find the rank of the word beginning with O and has other letters in ascending order then among all the possible words beginning with O find the rank of word beginning with OL and other letter in ascending order (using the number of arrangements of other letters by n! Formula )and so on till you get required word. Then add all those separately found out ranks you get required rank of required word.

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