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 →

Two boats are heading towards each other

Expert replies
Post new topic Post Reply
Previous Topic Next Topic
Junior | Next Rank: 30 Posts
Posts: 18
Joined: Mon Jan 09, 2012 8:23 pm
by GMIHIR » Tue May 01, 2012 8:58 pm
Two boats are heading towards each other at constant speeds of 5 miles/hr and 20 miles/hr respectively.
They begin at a distance 20 miles from each other. How far are they (in miles) one minute before they collide ?
A 1/12

B 5/12

C 1/6

D 1/3

E 1/5
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
Source: — Problem Solving |
User avatar
Master | Next Rank: 500 Posts
Posts: 210
Joined: Thu Mar 08, 2012 11:24 pmFollowed by: 3 members
Thanked: 62 times

by niketdoshi123 » Tue May 01, 2012 9:49 pm
Relative speed = 25miles/hr
= 25/60
= 1/12 miles/min

Hence the answer is A
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
User avatar
Legendary Member
Posts: 1239
Joined: Tue Apr 26, 2011 6:25 amFollowed by: 26 members
Thanked: 233 times
GMAT Score:680

by sam2304 » Tue May 01, 2012 9:55 pm
niketdoshi123 wrote:Relative speed = 25miles/hr
= 25/60
= 1/12 miles/min

Hence the answer is A
It should be B right ? ?
Getting defeated is just a temporary notion, giving it up is what makes it permanent.
https://gmatandbeyond.blogspot.in/
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
User avatar
Master | Next Rank: 500 Posts
Posts: 210
Joined: Thu Mar 08, 2012 11:24 pmFollowed by: 3 members
Thanked: 62 times

by niketdoshi123 » Tue May 01, 2012 10:58 pm
The question asks: how far are they 1 minute before they collide, so we need to find how much distance they traveled in 1 minute.
As their relative speed is 1/12 miles/minute
distance = 1/12*1= 1/12miles
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
User avatar
Legendary Member
Posts: 1239
Joined: Tue Apr 26, 2011 6:25 amFollowed by: 26 members
Thanked: 233 times
GMAT Score:680

by sam2304 » Wed May 02, 2012 1:49 am
niketdoshi123 wrote:The question asks: how far are they 1 minute before they collide, so we need to find how much distance they traveled in 1 minute.
As their relative speed is 1/12 miles/minute
distance = 1/12*1= 1/12miles
There is a mistake in your calculation. I tried to point that out.

25/60 = 5/12 and not 1/12.
Getting defeated is just a temporary notion, giving it up is what makes it permanent.
https://gmatandbeyond.blogspot.in/
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
User avatar
Master | Next Rank: 500 Posts
Posts: 210
Joined: Thu Mar 08, 2012 11:24 pmFollowed by: 3 members
Thanked: 62 times

by niketdoshi123 » Thu May 03, 2012 2:02 am
my mistake
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
Post new topic Post Reply
• Page 1 of 1