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Ravi dsdsd Grade:
        

A bag contains n identical red balls , 2n identical black balls & 3n identical white balls .

If probability of drawing n balls of same colour is equal to 1/6 , then minimum no of red balls in the bag is equal to ?

7 years ago

Answers : (1)

SHAIK AASIF AHAMED
askIITians Faculty
74 Points
										Hello student,
please find the answer to your question below
From the given data
The requires probability is given by
(3)/(n+2c2)\leq1/6
By substitution we find that n=5 is the smallest integer which makes this solution possible
Soprobability of drawing n balls of same colour is equal to 1/6 , then minimum no of red balls in the bag is equal to 5
2 years ago
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