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A student is study the effect of playing music on concentration. She has 45 volunteers participating: 15 musicians and 30 non-musicians. How many groups c

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A student is study the effect of playing music on concentration. She has 45 volunteers participating: 15 musicians and 30 non-musicians. How many groups c 12 volunteers can she make if 3) There are no restrictions b) Half must come from each group c) There mast be at least 3 musicians

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