BREAKING: Target Test Prep releases Brand New 2026 On Demand GMAT prep course

Redeem

Target Test Prep · GMAT

Choose how you want to prepare

Learn live with an expert or move at your own pace. Every option includes the complete TTP study system.

★★★★★5.0559 reviews
GMATBootcamp Starts Sep 28
Chris Peckover, Target Test Prep GMAT expert
LIVE ONLINE BOOTCAMP

Live Online Bootcamp Class with Top GMAT Expert Chris Peckover

15 live classes from Sep 28, 2026

Schedule
Mon to Fri · 7:00 to 10:00 PM ET
Included
Live classes + 6 months of TTP OnDemand
  • Boost your GMAT score in less than one month in a live online class
  • 6 months access to TTP OnDemand video courses included
View bootcamp & enroll
Limited cohort · enrollment openTarget Test Prep
EALiveTeach 5 seats left
Logan Thompson
EXECUTIVE ASSESSMENT

Sep 6 to Dec 6, 2026

with Logan Thompson

Schedule
Sun · 9:30 AM to 12:30 PM ET
Included
40 hours of live online classes plus six months of access to the complete TTP EA OnDemand course.
  • 165+ EA Score Guarantee
  • 4,100+ Quant, Verbal, and Integrated Reasoning practice questions
  • 400+ hours of in-depth video lessons
  • 3,000+ step-by-step video solutions
View EA class & enroll
Limited cohort · enrollment openTarget Test Prep
GMATOnDemand Start anytime
SELF-PACED MASTERCLASS

Target Test Prep GMAT OnDemand

Complete access from day one. Study on your schedule.

715+ score guarantee
$0to start then $127/mo
  • Personalized study plan and analytics
  • Thousands of lessons and practice questions

Compare the format, schedule, and included access before enrolling. Prices and seat counts shown reflect the supplied offer details.

Family members

Expert replies
by harsh.champ » Sun Feb 07, 2010 12:13 pm
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
Join the discussion
Source: — Data Sufficiency |

by ajith » Sun Feb 07, 2010 1:01 pm
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.
a - dad s age
b - moms age
c - eldest childs age
d - elder childs age
e - youngest childs age

1. a = 3(c+d) a = 11+ d^2+ e^2 ; in sufficient
2. a>b>40; a+b+c+d+e = 105; c+d+e < 25 ; insufficient

The maximum age the dad can have is 105- 41- (1+2+3) = 58
d^2+e^2< 47
d<6
e<5

if d=5 and e = 3
a = 45
c= 10
b =42

I cant find any other solution, I go for C
Always borrow money from a pessimist, he doesn't expect to be paid back.
Join the discussion

by onedayi'll » Sun Feb 07, 2010 8:29 pm
Both statement alone are insufficient to solve

when taken together i think we're able to solve.

I didn't solved it fully but my intuition says C :)

I know, this is the wrong way to use but i narrowed it down and then tried.....
Gym/GMAT/Girl -- Be Serious
Join the discussion