Math, asked by Adityasangani8432, 1 year ago

A bag contains 4 red balls and 5 black balls. In how many ways can i make a selection so as to take at least 1 red ball and 1 black ball

Answers

Answered by radhe1984
2
take out one ball from both bags
Answered by anwarsharique597
6

We have 4 red balls and 5 black balls we need to have atleast 1 ball from each of them

So

(2^4 -1)*(2^5-1) =465

where -1 in each of them indicates that we are taking out chances of haveing 0 ball

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