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CA CS CIMA Prakash Somani (Landmark Group)     02 September 2008

Find the no of station..

Every station in N railroad should issue every other station's ticket....now,X more stations are added and each station should then issue 46 more tickets.....find the number of stations before and after x stations added......



 2 Replies

Amresh Choudhary

Amresh Choudhary (M.Sc. (Maths) MBA LLB (DU))     02 September 2008

only 1 station before i.e. N=1

and 45 more station is added

now each station have to issue 46 tickets to each station,

CA Naveen Kumar Agrawal

CA Naveen Kumar Agrawal (Chartered Accountant / MBA)     03 September 2008

Originally posted by :Amrish Sehrawat
" only 1 station before i.e. N=1
and 45 more station is added
now each station have to issue 46 tickets to each station,
"


Dear Amrish ur answer is wrong. if 45 new stations r added then each station has to issue 45 more tickets and not 46 tickets as asked in d ques. a station canot issue a ticket for a journey to itself. as per calculation, answer shud be:

A station can issue total no tickets equal to total No. of Station - 1 since it can not issue a ticket for a journey to itself.

therefore,  (N + X - 1) - (N - 1) = 46 solving the above u will get N = 1, & X = 46


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