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What is the fewest number of pairs you need to test to guarantee you can get the flashlight on?
Last Post 07 Apr 2015 04:32 AM by sccrowl. 2 Replies.
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bruno gggg
New Member
New Member
Posts:63

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06 Apr 2015 01:49 PM
    Question: You have a flashlight that takes 2 working batteries. You have 8 batteries but only 4 of them work.

    james
    Basic Member
    Basic Member
    Posts:125

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    07 Apr 2015 12:46 AM
    4
    sccrowl
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    New Member
    Posts:9

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    07 Apr 2015 04:32 AM
    To insure a good battery: 5.
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