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Sir pls solve the following.
question image
Asked by rsudipto | 30 Dec, 2018, 20:49: PM
answered-by-expert Expert Answer
The number of words with atleast one letter repeated = total words - number of words in which no letter is repeated
total words can be formed by 105 = 100000 ways.
number of words in which no letter is repeated = 10P5 = 30240
Hence, the number of words with atleast one letter repeated = 100000 - 30240 = 69760
Answered by Sneha shidid | 31 Dec, 2018, 11:00: AM

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