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? ans: 70?
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Total family member is 6
Let's assume them as ..
A
B
C
D
E
F- wife
N- baby
Before ten years
(A+b+c+d+e+f)-60/6 Was the average..
Now
( b+c+d+e+f+n) /6 is the average ..
Since today the bay is born n= 0
Therefore by solving above two equation u will get a as 60 ..
Therefore your answer must be 60 years no 70 ..
Let's assume them as ..
A
B
C
D
E
F- wife
N- baby
Before ten years
(A+b+c+d+e+f)-60/6 Was the average..
Now
( b+c+d+e+f+n) /6 is the average ..
Since today the bay is born n= 0
Therefore by solving above two equation u will get a as 60 ..
Therefore your answer must be 60 years no 70 ..
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