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Let m denote the no. of ways in which 4 different books are distributed among 10 persons, each receiving none or one only and let n denote the no. of ways of distribution if the books are all alike. Then: (A) m = 4n (B) n = 4m (C) m = 24n (D) none


Let m denote the no. of ways in which 4 different books are distributed among 10 persons, each receiving none or one only and let n denote the no. of ways of distribution if the books are all alike. Then:


(A)   m = 4n


(B)   n = 4m


(C)   m = 24n


(D)   none


Grade:Upto college level

3 Answers

Roshan Mohanty
64 Points
7 years ago

m=10C4  *4!
and n=10C4
so m=n*4!
       =n*24
ans is C 

Vikas TU
14149 Points
7 years ago

different books: m =10P4
identical books: n =10C4

m/n = 4! = 24
-----------------

 

(C)   m = 24n

 

plz approve

jaymin prajapati
31 Points
7 years ago

different books: m =10P4
identical books: n =10C4

m/n = 4! = 24

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