Nwani200 Nwani200

07-02-2017
Mathematics

contestada

A small combination lock on a suitcase has 5 wheels, each labeled with the 10 digits from 0 to 9. If an opening combination is a particular sequence of 5 digits with no repeats, what is the probability of a person guessing the right combination?

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sirwill007 sirwill007

07-02-2017

There are 10 possible number on the first wheel, their would be 9 possible on the second, 8 on the thrid, 7 on the frouth, and 6 on the fifth.

So, 10 * 9 * 8 * 7 * 6 = 30,240 possible combinations without repeating numbers.

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