one below the other?
6. 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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Oct
6. 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? 6. 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? October [...]