A company has 13 employees,8 of whom belong to the union..
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A company has 13 employees,8 of whom belong to the union..
A company has 13 employees,8 of whom belong to the union.If 5 people work any one shift,and the union contract specifies that at least 4 union members work each shift,then how many different combinations of employees might work any given shift?
a) 10 b) 231 c) 336 d) 350 e) 406
A company has 13 employees,8 of whom belong to the union.If 5 people work any one shift,and the union contract specifies that at least 4 union members work each shift,then how many different combinations of employees might work any given shift?
a) 10 b) 231 c) 336 d) 350 e) 406
![A company has 13 employees,8 of whom belong to the union..](/uploads/image/z/16351389-45-9.jpg?t=A+company+has+13+employees%2C8+of+whom+belong+to+the+union..)
8选4乘5选1
=8*7*6*5/(4*3*2*1)*5
结果350
=8*7*6*5/(4*3*2*1)*5
结果350
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