Age of Father

This topic has expert replies
User avatar
Legendary Member
Posts: 1132
Joined: Mon Jul 20, 2009 3:38 am
Location: India
Thanked: 64 times
Followed by:6 members
GMAT Score:760

Age of Father

by harsh.champ » Tue Feb 09, 2010 5:32 am
There are five members in a family - three children and their parents. What is the age of the father?

I. The age of father is three times the sum of the ages of two elder children and 11 years more than the sum of the squares of the ages of two younger children.
II. The average age of the family is 21 years and the mother's age is greater than 40 years but less than father's age.
It takes time and effort to explain, so if my comment helped you please press Thanks button :)



Just because something is hard doesn't mean you shouldn't try,it means you should just try harder.

"Keep Walking" - Johnny Walker :P
Source: — Data Sufficiency |

User avatar
Legendary Member
Posts: 1022
Joined: Mon Jul 20, 2009 11:49 pm
Location: Gandhinagar
Thanked: 41 times
Followed by:2 members

by shashank.ism » Tue Feb 09, 2010 6:17 am
harsh.champ wrote:There are five members in a family - three children and their parents. What is the age of the father?

I. The age of father is three times the sum of the ages of two elder children and 11 years more than the sum of the squares of the ages of two younger children.
II. The average age of the family is 21 years and the mother's age is greater than 40 years but less than father's age.
I. F=3*(Ci +Cii)
F= 11+ Cii^2 +Ciii^2

insufficient

II. 40 < M<F
F+M+ Ci+Cii+ciii = 21x5 =105

insufficient

combined insufficient

E
My Websites:
www.mba.webmaggu.com - India's social Network for MBA Aspirants

www.deal.webmaggu.com -India's online discount, coupon, free stuff informer.

www.dictionary.webmaggu.com - A compact free online dictionary with images.

Nothing is Impossible, even Impossible says I'm possible.