Accenture
Company
Numerical Ability
Age Problem
A man spent 1/5 of his life as young boy...,1/7,1/12, and then 5 years upto his sons birth his son was chosen alderman 4 years ago when he was half the age of the man now. Find the mans age.
Read Solution (Total 3)
-
- Let x = his final age
:
a lengthy but simple equation
Final age = child + youth + bach + marriage + son's age + 4
x = x/5 + x/7 + x/12 + 5 + x/2 + 4
:
Common denominator of 12*7 = 84
x =14 x/84 + 7x/84 + 12x/84 + 5 + 42x/84 + 4
:
x = 75x/84 + 9
:
84x/84 - 75x/84 = 9
:
9x/84 = 9
:
x = 84 is his final age
:
Check:
14 + 7 + 12 + 5 + 42 + 4 = 84
- 12 years agoHelpfull: Yes(3) No(5)
- x=x/5+x/7+x/12+5+(age of the son)
age of the son let be y
so y-4=x/2
y=x/2+4
so x=x/5+x/7+x/12+5+x/2+4
x=9*420/31
i think the question is wrong
@neha when u take the LCM it is not 84
it is 84*5=420 - 11 years agoHelpfull: Yes(2) No(1)
- Anyways the answer is 84 ...still didnt got the concept ...have to move on...
- 8 years agoHelpfull: Yes(0) No(0)
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