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Mayank Bhardwaj Grade: 12
        

A has 3 shares in a lottery contain 3 prizes and 9 blanks & B has 2 shares in a lottery contain 2 prizes & 6 blanks Compare chances of winning ?


 

7 years ago

Answers : (1)

Badiuddin askIITians.ismu Expert
147 Points
										

Dear Mayank


probability for A to loss = 9C3 /12C3


probability for A to win  = 1 - 9C3 /12C3  =1 -84/220  =136/220


 


probability for B to loss = 6C2 /8C2


probability for A to win  = 1 - 6C2 /8C2  =1 -15/28  =13/28


 


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Badiuddin

7 years ago
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