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0 votes
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in Mathematics by (57.7k points)

The number of ways in which 12 balls can be divided between two friends, one receiving 8 and the other 4, is :

(a) (12 !/8 ! 4 !)

(b) (12 ! 2 !/ 8 ! 4 !)

(c) (12 ! /8 ! 4 ! 2 !)

(d) none of these

1 Answer

+1 vote
by (71.7k points)
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Best answer

Correct option (b) (12 ! 2 ! /8 ! 4 !)

Explanation:

12 balls can be distributed between two friends A and B in two ways 

(i) friend A receives 8 and B receives 4. 

(ii) friend B receives 8 and A receives 4. 

So, the required number of ways

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