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Grade Upto college levelAlgebra

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

Profile image of TANAYRAJ SINGH CHOUHAN
13 Years agoGrade Upto college level
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3 Answers

Profile image of Roshan Mohanty
ApprovedApproved Tutor Answer13 Years ago

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

Profile image of Vikas TU
ApprovedApproved Tutor Answer13 Years ago

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

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

 

(C)   m = 24n

 

plz approve

Profile image of jaymin prajapati
ApprovedApproved Tutor Answer13 Years ago

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

m/n = 4! = 24