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The number of four-digit numbers that can be made with the digits 1, 2, 3, 4, and 5 in which at least two digits are identical is a. b. c. d. none of these
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How many digits telephone numbers can be formed with the digits , if each number starts with and no digits appear more than once?Stuck on the question or explanation?
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Question Text | The number of four-digit numbers that can be made with the digits 1, 2, 3, 4, and 5 in which at least two digits are identical is
a. b. c. d. none of these |