The number of ways in which 12 books can be put in three shelves with four on each shelf is a. `(12 !)/((4!)^3)` b. `(12 !)/((3!)(4!)^3)` c. `(12 !)/((3!)^3 4!)` d. none of these

The total number of ways in which 12 persons can be divided into three groups of 4 persons each, is

Number of ways in which 12 different things can be distributed in 3 groups, is

A library has a copies of one book, b copies each of two books, c copies each of three books, a single copy of d books. The total number of ways in which these books can be arranged in a shelf is equal to a. ((a+2b+3c+d)!)/(a !(b !)^2(c !)^3) b. ((a+2b+3c+d)!)/(a !(2b !)^(c !)^3) c. ((a+b+3c+d)!)/((c !)^3) d. ((a+2b+3c+d)!)/(a !(2b !)^(c !)^)

There are three copies each of four different books.The number of ways in which they can be arranged in a shelf is.a.(12!)/((3!)^(4)) b.(12!)/((4!)^(3)) c.(21!)/((3!)^(4)4!) d.(12!)/((4!)^(3)3!)

Number of ways in which 12 different balls can be divided into groups of 5, 4 and 3 balls are

In how many ways can 12 books be divided in 3 students equally?

(3)/(8) is what part of (1)/(12)?(3)/(7)(b)(1)/(12) (c) (4)/(3) (d) None of these

2(3)/(4)-:2(2)/(3)-:1(1)/(12)=?(39)/(48) (b) 1(1)/(4) (c) (169)/(144) (d) None of these