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Find the total number of selections of a...

Find the total number of selections of at least one red ball from a bag containing 4 red balls and 5 black balls, balls of the same colour being identical.

Text Solution

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Number of sections of atleast one red ball from 4 identical red balls=4
Number of selections of any number of black balls from 5 identical black balls
=5+1=6
`therefore`Required number of selection of balls
`=4xx6=24`.
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