When I was married 10 years ago my wife is the 6th
member of the family. Today my father died and a baby born
to me. The average age of my family during my marriage is
same as today. What is the age of Father when he died?
Answers were Sorted based on User's Feedback
Answer / dinesh kumar
let x be the avg age of each person in the family ten years
back...
so total age=6x
after 10 years i.e,now the total age of the family =6x+60
let grand father age as y
then the average of the family=(6x+60-y)/5
(bcoz grand father has expired and the new born baby has no
age at present)
according to the given question (6x+60-y)/5=x
bcoz x is the avg age bfore 10 years.
while calc the equation according to the presnt age we have
to add 10 to the result....
so the answer is 70
Is This Answer Correct ? | 90 Yes | 41 No |
Answer / chandrima sinha
the time from marriage till now is 10 yrs.Average age will
increase by 10 yrs.
total no. in family is 6. So sum will increase by 6*10=60
the age of newly born is 0. since no change in
average .hence age of father when he died = 60
Is This Answer Correct ? | 66 Yes | 31 No |
Answer / baby
et x be the avg age of each person in the family ten years
back...
so total age=6x
after 10 years i.e,now the total age of the family =6x+60
let grand father age as y
then the average of the family=(6x+60-y)/5
(bcoz grand father has expired and the new born baby has no
age at present)
according to the given question (6x+60-y)/5=x
bcoz x is the avg age bfore 10 years.
while calc the equation according to the presnt age we have
to add 10 to the result....
so the answer is 70
Is This Answer Correct ? | 8 Yes | 4 No |
Answer / aaaaa
dinesh I cant understand ....please make it clear....
Is This Answer Correct ? | 1 Yes | 0 No |
Answer / p.vidhya
LETS TAKE THEIR TOTAL AGE 2 B 'K'THEN AVG VALUE IS K/6 NOW TAKE FATHERS AGE AS 'X' THEN AFTER 10 YEARS AFTER HIS DEATH AVG AGE IS [K-X+{10*5}]/6 NEW BORNS AGE WILL B TAKEN 0 AS AVG AGE IS SAME SO EQUATE ABOVE 2 AVG U WILL GET ANS AS 50 YEARS
Is This Answer Correct ? | 5 Yes | 15 No |
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