Out of 10 white, 9 black and 7 red balls, in how many ways
can we select one or more balls
please with solution.
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Answer Posted / sanjeev kumar
out of p alike things,q alikes things and r alike things, no of ways of selecting one or more = (p+1)*(q+1)*(r+1)-1.
so, (11*10*8)-1 =879
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