In 2014 there are n number of people who register on elitmus site...out of which 45% are from north and 55% are from south...Now elitmus has made a google docs page which gives information about company. The number of people who register first and then connected to group are 60% from north and 30% from south...after doing this all... the difference in north and south connected to google docs is 9555...find how many are docs there in starting....!! who registered them self to elitmus..!!

//Quiet easy 1.

A. 100000
B.95000
C.91000
D.Cant determine.

• C.
  
  Registered people are : (45/100)*n from north and (55/100)*n from south.
  People connected to google docs are:
  (60/100)*(45/100)*n from north and (30/100)*(55/100)*n from south.
  Now,according to the sum,
  (60/100)*(45/100)*n - (30/100)*(55/100)*n = 9555
  or,n=91000.
• 10 years agoHelpfull: Yes(11) No(0)
• ans is C 91000.
  
  
  north= 60 percent of 45 percent of n=(60/100)*(45/100)*n
  similarly south= (30/100)*(55/100)*n
  now north - south = 9555
  solving which n= 91000.
• 10 years agoHelpfull: Yes(1) No(0)
• let the total number of student=n
  North people=0.45n
  South People=0.55n
  Gogle Connected..
  North=0.60(0.45)n
  South=0.30(0.55)n
  diffrence=0.60(0.45)n-0.30(0.55)n=9555
  0.27n-0.165n=9555
  0.105n=9555
  n=91000
  c is ans
• 10 years agoHelpfull: Yes(0) No(0)