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

Redeem
TTP OnDemand GMAT Video Course
Featured Course

Target Test Prep GMAT OnDemand

Scott Woodbury-Stewart’s private virtual classroom — 400 hours of master-class video lessons for the GMAT Focus Edition.

  • 715+ score guarantee — highest in the industry (99th percentile)
  • 52 chapters · 1,500+ lessons · 4,000+ practice questions
  • 400 hours of video · 1,500+ instructor-led HD smartboard lessons
  • 300,000+ students accepted to Harvard, Stanford, Wharton, Booth & Sloan & more
  • 24/7 live support + weekly Zoom office hours with GMAT instructors
  • TTP AI Assist — 24/7 AI-powered virtual tutor for instant help
  • 1,200+ flashcards + AI-powered study assistant & daily calendar
  • OnDemand, LiveTeach & GMAT Bootcamp formats available
  • Also: GRE, SAT Math & Executive Assessment courses
  • MBA Admissions Consulting now available
  • 🏆 2025 EdTech Breakthrough Award: Test Prep Solution Provider of the Year
  • 200,000+ students served
  • 5-day free trial — $0 to start, no auto-billing, cancel anytime
★★★★★ 5.0 (559 reviews)
130-pt guarantee
$0 to start then $127/mo
Start Free 5-Day Trial Read 559 Reviews →

beginners'bin#2

Expert replies
Post new topic Post Reply
Previous Topic Next Topic
User avatar
GMAT Instructor
Posts: 3650
Joined: Wed Jan 21, 2009 4:27 amFollowed by: 80 members
Location: India
Thanked: 267 times
GMAT Score:760

beginners'bin#2

by sanju09 » Thu Mar 25, 2010 11:43 pm
A father is three times as old as his son. After fifteen years the father will be twice as old as his son's age at that time. What is the present age of the father?
(A) 36
(B) 42
(C) 45
(D) 48
(E) 50

[spoiler]OA C[/spoiler]
The mind is everything. What you think you become. -Lord Buddha



Sanjeev K Saxena
Quantitative Instructor
The Princeton Review - Manya Abroad
Lucknow-226001

www.manyagroup.com
Top
Join the discussion
Log increate an account to reply.
Source: — Problem Solving |
User avatar
Legendary Member
Posts: 537
Joined: Sun Jul 19, 2009 7:15 amFollowed by: 1 member
Location: Nagpur , India
Thanked: 41 times

by rockeyb » Fri Mar 26, 2010 1:34 am
Father's age = f

Son's age = s

given f = 3s

after 15 yrs.

father's age = f+15

son's age = s+15

given that f+15 = 2 (s+15 )

f - 2s = 15

we know f = 3s

So f- 2f/3 = 15

[spoiler]f = 45 . C[/spoiler]
"Know thyself" and "Nothing in excess"
Top
Join the discussion
Log increate an account to reply.
Post new topic Post Reply
• Page 1 of 1