Mathematics, 02.04.2020 04:43, amandasantiago2001

A lock has a code of 3 numbers between 1 and 20. If no numbers in the code are
allowed to repeat, how many different codes could be made?

Answers: 1

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A lock has a code of 3 numbers between 1 and 20. If no numbers in the code are
allowed to repe...