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Grade: 12
        
1st question in the attachment....................................
7 months ago

Answers : (2)

Arun
24739 Points
							
 
Dear student
 
4/10)(6/12)+(6/10)(4/12)=2/5
hope u will understand
 
In case of any difficulty, please feel free to ask me again.
7 months ago
Saurabh Koranglekar
askIITians Faculty
8387 Points
							Dear student

If first time red is drawn (4/10)*(6/12)

If first time black is drawn ( 6/10)*( 4/12)

As we want to obtain red ball at output

So adding to cases ans is 2/5

Regards
7 months ago
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