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Finding Good Batteries (Posted on 2013-11-11) Difficulty: 3 of 5
My remote control needs two new batteries, but when I went to get replacements I found that the four good batteries got mixed in with four bad batteries. The only means of determining if the batteries are good is to put two into the remote and see if it works. The remote works with two good batteries and is unresponsive if I have at least one bad battery in it.

What is the minimum number of tries I need to guarantee that I get two good batteries?

See The Solution Submitted by Brian Smith    
Rating: 4.5000 (2 votes)

Comments: ( You must be logged in to post comments.)
  Subject Author Date
re: my(IMPROVED ) answer and exolanationSalil2013-11-13 23:32:31
re: my(IMPROVED ) answer and exolanationSteve Herman2013-11-12 11:41:07
Solutionmy(IMPROVED ) answer and exolanationAdy TZIDON2013-11-12 02:58:40
Some Thoughtsre: my solutionAdy TZIDON2013-11-12 02:03:41
re(2): my solutionCharlie2013-11-12 00:11:51
re: my solutionSalil2013-11-11 23:46:30
Solutionmy solutionCharlie2013-11-11 17:27:25
Solutionsolution-Ady TZIDON2013-11-11 17:04:52
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