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Answers posted by yesgayathri
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True-or-False:There will be only at 24 selections containing atleast one red ball out of a bag containing 4 red and 5 black balls.It is being given that balls of the same colour are identical.
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Feb 6, 2019
9C0+9C1+......+9C9 gives all possible selections. In these sections we look for selections with at l...
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