Ten people form a circle.Each one think of a number and whisper it to the two neighbors adjacent to her in the circle.Then each person computes and announces the average of the numbers sher heard from her two neighbors.The number announced by the person are 44,12,23,27,40,46,56,61,69,36.What was number picked by person who announced the avg 56???
64,56,18,14

• 56 is the ans
  let no chosen by the following avg speaker as
  56-->a
  61-->b
  69-->c
  63-->d
  44-->e
  12-->f
  23-->g
  27-->h
  40-->i
  46-->j
  
  now a+c=2*61
  and a+i=2*46
  combining this two we get 2a+c+i=2(61+46)........(i)
  similarly
  c+e=2*36
  g+e=2*12
  subtracting this two we get c-g=2(36-12)=2*24.........(ii)
  i+g = 2*27..........(iii)
  
  
  (ii)+(iii) --> c+i=2(27+24).....(iv)
  
  now by (i)-(iv) -------> 2a=2(107-51)
  
  or a=56
  
  its my request to all of you if u r not sure about the correct ans don't post it
  
• 12 years agoHelpfull: Yes(16) No(3)
• the ans is 51
• 12 years agoHelpfull: Yes(6) No(9)
• ts 56-100%right
• 12 years agoHelpfull: Yes(3) No(2)
• can anyone xplain dis pblm cearly
  
• 12 years agoHelpfull: Yes(3) No(0)
• 56 is the ans i am sure about it
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• plz mail me the ques my email id is bhargava.sanchit90@gmail.com
• 12 years agoHelpfull: Yes(1) No(4)
• 64 will be the right ans.
  as-- let no choosen by the persons are..
  
  44(a),12(b),23(c),27(d),40(q),46(z),56(x)61(y),69(p),36(j)
  
  =>y+z=112 ,
  p+x=122 , x+q=92
  => p-q=30
  now cross check the values to find the ans. and satisfy the constraint p-q=30.
• 12 years agoHelpfull: Yes(1) No(1)
• pls explain clearly
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• hey pooja pls mail me these questions to shyamleshd@gmail.com
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• ans is 61...
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