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In how many ways can we select exactly k objects out of n groups. For example there are 3 bananas, 4 apples and 5 mangoes. Fruit of each kind is identical. In how many ways can we select exactly 2 fruits, and exactly 3 fruits. Pls help.

Harsh Singh
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  • Please clarify your specific problem or provide additional details to highlight exactly what you need. As it's currently written, it's hard to tell exactly what you're asking. – Community Oct 29 '24 at 06:28
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    Please clarify: you say "identical objects of different sizes",but it seems that size is not relevant. With your example $(B1,B2,B3,A1,A2,A3,A4,M1,M2,M3,M4,M5)$, do you consider that $(B1, A1)$ and $(B1,A2)$ are similar ? Last question : what have you done to try to solve this exercize ? – Lourrran Oct 29 '24 at 08:19

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