ID tag
How many three-digit ID-tag can be made if:
a) a digit cannot be used more than once
b) the 1st digit must be five, and repetition of the others is not permitted.
a) a digit cannot be used more than once
b) the 1st digit must be five, and repetition of the others is not permitted.
Final Answer:
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combinatoricsnumbersGrade of the word problem
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