Question 582173
Show all work. Mary purchased a package of 24 different plants, but she only needed 20 plants for planting. In how many ways can she select the 20 plants from the package to be planted? 
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Ans: 24C20 = 24C4 = (24*23*22*21)/(1*2*3*4) = 10626
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Cheers,
Stan H.
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