Ten years ago, the ages of the members of a joint family of eight people added up to 231 years. Three
years later, one member died at the age of 60 years and a child was born during the same year. After
another three years, one more member died, again at 60, and a child was born during the same year.
The current average age of this eight member joint family is nearest to:
[1] 23 years [2] 22 years [3] 21 years [4] 25 years [5] 24 years

• 231+(8*3)-60=195
  195+(8*3)-60=159
  159+(8*4)=191
  avg age= 191/8=23.875
  ans=24yr
• 11 years agoHelpfull: Yes(52) No(8)
• Ten years ago, the sum of the ages of 8 members in the family = 231
  After 3 years, the age of every member increases by 3; hence the total age increases by 8? 3 = 24.
  The total age is 231 + 24 = 255
  A member of 60 years age died = 255 – 60 = 195
  Similarly, again after 3 years,
  Sum of the ages of all members = 195 + 24 = 219
  Again a member of age 60 died = 219 – 60 = 159
  Now they have asked the sum in the current years, so the remaining years are 4.
  Hence the sum increases by 8 * 4 = 32
  Total sum of the ages of 8 members in the present year = 159 + 32 = 191
  Average age = 191 / 8 = 23.8 = 24 (approx)
• 10 years agoHelpfull: Yes(20) No(3)
• Before 10 years, age of 8 persons=231
  Then, After 3 years
  Member who died was of 60 years after 3 years, so we will add only 3*7 years to the total not 3*8 as 8th member’s age is already given as 60 years.
  0 years for new born baby.
  Total age = 231+(3*7)-60+0 = 192
  Again, After 3 years
  Member who died was of 60 years, and 0 years for new born baby…
  Total Age = 192+(3*7)-60+0 = 153
  => Avg. Age= 153/8 =19.12=19
  This was avg. age before 10-3-3 =4 years ago, as we were calculating from Before 10 years.
  So,
  Current Age= 19+4 = 23 years.
  
• 11 years agoHelpfull: Yes(9) No(6)
• 231-60+(7*3)=192
  192-60+(7*3)=153
  153+(8*4)=185
  avg age= 185/8=23.125
  ans=23
• 11 years agoHelpfull: Yes(5) No(20)
• 24 yrs ans is
• 11 years agoHelpfull: Yes(4) No(6)
• 231+(8*3)-60=195
  195+(8*3)-60=159
  159+(8*4)=191
  avg age= 191/8=23.875
  ans is 24yr
  
• 8 years agoHelpfull: Yes(1) No(0)
• 24 because that person is 3 years is present and after 3 years his died
  So count 8 member
  Ans is 24
• 7 years agoHelpfull: Yes(0) No(0)