Arrangement of Alike Objects

Problems based on Arrangements of Alike Objects

Problems based on Arrangements of Alike Objects

If a group of n distinct objects,the number of arrangements of 4 object is 12 xx the number of arrangements of 2 objects,then the number of objects is (a) 10 (b) 8(c)6(d) none of these

If the number of arrangements of 4 alike apples,5 alike mangoes,I banana and I orange in which all the apples are together or all the mangoes are together is K,then find the sum of digits in K

Five different objects A_(1),A_(2),A_(3),A_(4),A_(5) are distributed randomly in 5 places marked 1,23,4,5. One arrangement is picked at random. The probability that in the selected arrangement,none of the object occupies the place corresponding to its number,is

Division into groups | Alike Objects

Inclusion & Exclusion Theorem || Permutation OF Alike Objects Taken Same at a Time