Permutations And Combinations

Question
CBSEENMA11014182

How many different words can be formed using letters of the word ‘MATHEMATICS’.

(a) How many of them begin with C?

(b) How many begin with T?

(c) In how many of these vowels occur together?

Solution

Solution not provided.
Ans. 4989600 (a) 453600 (b) 907200 (c) 120960

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