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# Combinatorics

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Intern
Joined: 29 Sep 2017
Posts: 3

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14 Oct 2017, 02:25
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A password to a certain database consists of digits that cannot be repeated. If the password is known to consist of at least 8 digits and it takes 12 seconds to try one combination, what is the amount of time necessary to guarantee access to database?

can anybody provide me explaination without using formulas?

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Math Expert
Joined: 02 Sep 2009
Posts: 47168

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14 Oct 2017, 08:03
abhishek94 wrote:
A password to a certain database consists of digits that cannot be repeated. If the password is known to consist of at least 8 digits and it takes 12 seconds to try one combination, what is the amount of time necessary to guarantee access to database?

can anybody provide me explaination without using formulas?

--== Message from GMAT Club Team ==--

This is not a quality discussion. It has been retired.

If you would like to discuss this question please re-post it in the respective forum. Thank you!

To review the GMAT Club's Forums Posting Guidelines, please follow these links: Quantitative | Verbal Please note - we may remove posts that do not follow our posting guidelines. Thank you.

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Re: Combinatorics &nbs [#permalink] 14 Oct 2017, 08:03
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# Combinatorics

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