Q. 6 persons standing in queue with different age group, after two years their average age will be 43 and seventh person joined with them. Hence the current average age has become 45. Find the age of seventh person?

• Ans: 69
  Let x,y,z,a,b,c are six persons
  Current avg age =k
  given that after 2years avg age is 43
  x+y+z+a+b+c+12 =43(6)=258
  x+y+z+a+b+c=246
  after 7 th person(d) joined current avg age is 45
  x+y+z+a+b+c+d=45(7)
  246+d=315
  d=69
• 13 years agoHelpfull: Yes(19) No(5)
• Ans:45
  
  (a+b+c+d+e+f)=258
  (a+b+c+d+e+f+g+12=315
  (a+b+c+d+e+f+g=315-12=303
  g=303-258
  g=45
  
• 13 years agoHelpfull: Yes(10) No(31)
• 69 years
• 13 years agoHelpfull: Yes(10) No(4)
• 69. Solution : 69+6*41/7 = 45
• 13 years agoHelpfull: Yes(3) No(9)
• 2
• 13 years agoHelpfull: Yes(2) No(21)
• answer is 45.
  sum of their ages is 43*6
  after two years each one age is incremented by 2.
  x is 7th person age.
  ((43*6+12)+x)/7=45.
  by solving this u will get x=45.
• 11 years agoHelpfull: Yes(0) No(2)