Asked by Billy
                A lottery is set up in which players pick six numbers from the set 1, 2, 3, ... , 39, 40.    How many different ways are there to play this lottery?   (In this game the order in which the numbers are picked does NOT matter.)
            
            
        Answers
                    Answered by
            Reiny
            
    The number of different combinations is
C(40,6) or 40!/(6!34!) = 3 838 380
    
C(40,6) or 40!/(6!34!) = 3 838 380
                    Answered by
            helper
            
    Combination of 40 taken 6 at a time
nCr = nPr/r!
nPr = n!/(n - r)!
nCr = (n!/(n - r)!) /r!
n = 40, r = 6
40C6 = 40P6/6! = 40!/34! / 6!
= 40!/(6!*34!)
= 40*39*38*37*36*35/(6*5*4*3*2*1)
= 2,763,633,600/720
= 3,838,380
I am not a tutor but this is right IF this is a combination of 40 taken 6 at a time (I checked my math in an online calculator)
    
nCr = nPr/r!
nPr = n!/(n - r)!
nCr = (n!/(n - r)!) /r!
n = 40, r = 6
40C6 = 40P6/6! = 40!/34! / 6!
= 40!/(6!*34!)
= 40*39*38*37*36*35/(6*5*4*3*2*1)
= 2,763,633,600/720
= 3,838,380
I am not a tutor but this is right IF this is a combination of 40 taken 6 at a time (I checked my math in an online calculator)
                    Answered by
            Hafiz Baba
            
    if,89,88,45,9,33, were selected from 1-90, what are the next five numbers to be selected.
    
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