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Mathematics, 29.03.2020 07:17 july00

The following 5 keys are for the following 5 locked padlocks. each key opens one and only one padlock. different keys open different padlocks. what is the least number of trials needed to guarantee that you will open all 5 padlocks?

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The following 5 keys are for the following 5 locked padlocks. each key opens one and only one padloc...
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