Alot of national flags are made up of three horizontal stripes.
how many different three colou...
Mathematics, 23.10.2019 16:00 Knownothing
Alot of national flags are made up of three horizontal stripes.
how many different three colour flags (tricolors) can be designed using green, blue, red, yellow and black stripes if all three colours must be different?
how many of them contain a red stripe?
how many extra possibilities are there if the top colour can be the same as the bottom colour?
3 marks
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in how many ways can prashad list his course choices? explain the reasoning for your answer.
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