There are 15 different colour combinations that Tonya and Lauren can choose. These are listed as follows: Green Orange, Green Yellow, Green Purple, Green Blue, Green Silver - 5 Orange Yellow, Orange Purple, Orange Blue, Orange Silver - 4 Yellow Purple, Yellow Blue, Yellow Silver - 3 Purple Blue, Purple Silver - 2 Blue Silver - 1
Tonya and Lauren can choose 2 colors from a selection of 6 colors in 15 different ways. This is calculated using the combinations formula C(n, r). The pairs include combinations like green and orange, yellow and purple, etc.
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Jawaban: 18,30Penjelasan: kelipatan 2