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An automobile license plate consists of 3 letters followed by 4 digits. How many different plates...

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Question

Basic Math

An automobile license plate consists of 3 letters followed by 4digits. How many different plates can be made:

a. If repetitions are allowed?

b. If repetitions are not allowed in the letters but are allowedin the digits?

c. If repetitions are allowed in the letters but not in thedigits?

Answer & Explanation Solved by verified expert
4.1 Ratings (875 Votes)
3 letters followed by 4 digits Total number of letters 26 Total number of digits 10 Total 7 a If repetitions are allowed 3 letters out of 26 and 4 digits out of 10 and repetitions are allowed Total number of cases in letters 263 17576 Total number of cases in digits 104 10000 Total number of    See Answer
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