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A restaurant has 6 pizza toppings to choose from. How many diffrent 3 topping pizzas are possible
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A restaurant has 6 pizza toppings to choose from. How many diffrent 3 topping pizzas are possible

User Matan Kadosh
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\bf _nC_r=\cfrac{n!}{r!(n-r)!}\qquad \begin{cases} n=6\\ r=3 \end{cases}\implies _6C_3=\cfrac{6!}{3!(6-3)!}
User Bemmu
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