6 persons standing in the queue for ROBERT movie are wearing different coloured shirts. All of them belong to different age groups. After two years, their average age will be 43. A seventh person joined with them, hence the current average age has become 45. Find the age of seventh person?
(a) 67
(b) 69
(c) 72
(d) 74

• ans is 69...
  current age of 6 is 6*41= 246
  when 7th person join group the age will be 7*45=315
  so 7th person age 315-246=69
  7th person is will be 69...
• 12 years agoHelpfull: Yes(48) No(9)
• sry it is 69
• 12 years agoHelpfull: Yes(6) No(2)
• i guess ans is 57
• 12 years agoHelpfull: Yes(5) No(17)
• ans is 69.
• 12 years agoHelpfull: Yes(4) No(1)
• 69 IS ANS
  
  
  
• 12 years agoHelpfull: Yes(4) No(0)
• 45*7-(43-2)*6=69 (Ans)
• 12 years agoHelpfull: Yes(4) No(0)
• 6 person present avg; 41, after 7th person join became 45.
  difference 4
  hence (6*4)+45=69
• 6 years agoHelpfull: Yes(4) No(0)
• Total age of 6 persons is x,after two years total age of 6 persons is x+12
  Average age of 6 persons is after two years is 43
  So (x+12)/6=43,then solve x,
  After 7th person is added then (x+7th person age)/7=45
  So we will get 7th person age easily i.e. 69
• 12 years agoHelpfull: Yes(3) No(0)
• x+2(6)/6=43 => x=258
  now 246+y/7=45 => y=69
  ag of that person is 69
• 12 years agoHelpfull: Yes(2) No(0)
• a+b+C+d+e+F+12=(43*6)=258
  a+b+c+d+e+f=246
  a+b+c+d+e+f+g=(45*7)=315
  315-258=69
• 7 years agoHelpfull: Yes(1) No(0)
• ans is 57
  because 6*43=258
  and a person has joined
  so,
  7*45=315
  age=315-258=57
• 6 years agoHelpfull: Yes(1) No(1)
• after 2 year avg will be 43
  so present avg =43-2=41
  now let E6 is sum of all 6 person's age
  ie E6=41*6=246
  let 7th person's age is x
  according to question (E6+x)/7=45
  x=(45*7)-(246)
  on solving x=69 ie ans
• 12 years agoHelpfull: Yes(0) No(0)
• let's assume A,B,C,D,E,F are the current ages of all 6 persons and since after two year average of ages will be : (A+B+C+D+E+F+2*6)/6 = 43(given) .........................eq(1)
  and if seventh person get added then current average of ages will be : (A+B+C+D+E+F+G)/7 = 45 (given) ;G is age of seventh person.
  put the value of eq(1) in above equation.....
  (G+246)/7 = 45
  G = 69 Ans.
• 7 years agoHelpfull: Yes(0) No(0)
• 67is write
• 6 years agoHelpfull: Yes(0) No(2)