A safe has 10,000 possible lock combinations. If a thief tried 80 combinations the first hour, then 40 every hour after, how many hours would it take before trying them all?

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asked Apr 2, 2023 176k views

11 votes

A safe has 10,000 possible lock combinations. If a thief tried 80 combinations the first hour, then 40 every hour after, how many hours would it take before trying them all?

Mathematics
college

Sbensu asked

by Sbensu

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5 votes

It takes 249hrs before trying them all.

A safe has 10,000 possible lock combinations. If a thief tried 80 combinations the-example-1

Marlon Assef answered Apr 6, 2023

by Marlon Assef

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