SOLUTION: When testing for electrical current in the cable with six color coded wires a meter was used to test two wires at a time how many tests are required for every possible pairing of t

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Question 1127702: When testing for electrical current in the cable with six color coded wires a meter was used to test two wires at a time how many tests are required for every possible pairing of two wires
Answer by ikleyn(52898)   (Show Source): You can put this solution on YOUR website!
.
There are   =  = 3*5 = 15  different pairs  of  6 color coded wires.


Accordingly, in total, 15 tests are required, for one for each pair of wires.

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This problem is on Combinations.

On Combinations,  see introductory lessons
    - Introduction to Combinations
    - PROOF of the formula on the number of Combinations
    - Problems on Combinations
    - OVERVIEW of lessons on Permutations and Combinations
in this site.

Also,  you have this free of charge online textbook in ALGEBRA-II in this site
    - ALGEBRA-II - YOUR ONLINE TEXTBOOK.

The referred lessons are the part of this online textbook under the topic  "Combinatorics: Combinations and permutations".


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Free of charge online textbook in ALGEBRA-II
https://www.algebra.com/algebra/homework/complex/ALGEBRA-II-YOUR-ONLINE-TEXTBOOK.lesson

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