Given 5 flags of different colours, how many different signals can be generated if each signal requires the use of 2 flags, one below the other?

1 Answer

answered Dec 29, 2016 by vikash (21,277 points)
selected Dec 29, 2016 by Rohit Singh

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Given 5 flags of different colours, how many different signals can be generated if each signal requires the use of 2 flags, one below the other?

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