Re: Permutation and combination Problems  
Answer for 5 ques ==>15 ??? Answer for 2 ques==> 44 ??? Answer for 4 question==>(4X9x9x8x7x6) ??? 
Re: Permutation and combination Problems  
hello ... TG sir and othr TGites , plz help and solve these questions

Re: Permutation and combination Problems  
5) 381 4) 154224 (9*9*8*7*34) 
Re: Permutation and combination Problems  
Hey sorry for question 5 i read it wrongly.It says different object.I took it as identical object. Ans 5>3^{7}>2187 ??? 
Re: Permutation and combination Problems  
@Saurabh, what is direct formula for problem number 2? 
Re: Permutation and combination Problems  
ans 4 15120 
Re: Permutation and combination Problems  
can you provide the solution 
Re: Permutation and combination Problems  
hello..shouldnt we use the derangement formula for Q2? 
Re: Permutation and combination Problems  
That's correct Dhwani It is derangement of 5 pairs only. Kamal Lohia 