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 →

Mixtures - kerosene, diesel and petrol

Expert replies
Post new topic Post Reply
Previous Topic Next Topic
Master | Next Rank: 500 Posts
Posts: 416
Joined: Wed Oct 03, 2007 9:08 amFollowed by: 1 member
Thanked: 10 times
by gmatrant » Fri Aug 06, 2010 6:23 pm
Two vessels have petrol, diesel and kerosene in the ratio 1:2:4 and 3:5:6 . If the quantities in the two vessels are mixed in the ratio 1:1, what is the raio of petrol, diesel and kerosene in the resultant mixture.
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
Source: — Problem Solving |
Newbie | Next Rank: 10 Posts
Posts: 9
Joined: Thu Feb 18, 2010 10:43 pm

by jain.chakresh » Fri Aug 06, 2010 7:58 pm
gmatrant wrote:Two vessels have petrol, diesel and kerosene in the ratio 1:2:4 and 3:5:6 . If the quantities in the two vessels are mixed in the ratio 1:1, what is the raio of petrol, diesel and kerosene in the resultant mixture.
Assume the multiplier is 10

10+30 = 40
20+50 = 70
40+60 = 100

new ratio 4:7:10

but i have a doubt if this line
If the quantities in the two vessels are mixed in the ratio 1:1
means that we can take a common multiplier.

If not, then this cannot be calculated until we have the ratio of volumes of two vessels, or ratio of any one of the liquids in two vessels.

BTW is this an official question?
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY

GMAT/MBA Expert

User avatar
GMAT Instructor
Posts: 1179
Joined: Sun Apr 11, 2010 9:07 pmFollowed by: 88 members
Location: Milpitas, CA
Thanked: 447 times

by Rahul@gurome » Fri Aug 06, 2010 8:09 pm
Solution:
Let the quantity of petrol, diesel and kerosene in the first vessel be x, 2x and 4x and let the same in the other vessel be 3y, 5y and 6y.

So x+2x+4x or 7x is the quantity of mixture in the first vessel and 3y+5y+6y or 14y is the quantity of mixture in the second vessel.

Now 7x parts of mixture in the first vessel has quantity of petrol, diesel and kerosene as x, 2x and 4x.
So 1 part of mixture has quantity of petrol, diesel and kerosene as x/7x, 2x/7x and 4x/7x which is 1/7, 2/7, 4/7.

Similarly 1 part of mixture in the second vessel has petrol, diesel and kerosene as 3/14, 5/14 and 6/14.

In the resulting mixture quantity of petrol, diesel and kerosene is 1/7+3/14, 2/7+5/14, 4/7+6/14 which is 5/14, 9/14 and 14/14.

Or the required ratio is 5:9:14.
Rahul Lakhani
Quant Expert
Gurome, Inc.
https://www.GuroMe.com
On MBA sabbatical (at ISB) for 2011-12 - will stay active as time permits
1-800-566-4043 (USA)
+91-99201 32411 (India)
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
Newbie | Next Rank: 10 Posts
Posts: 9
Joined: Thu Feb 18, 2010 10:43 pm

by jain.chakresh » Fri Aug 06, 2010 8:40 pm

In the resulting mixture quantity of petrol, diesel and kerosene is 1/7+3/14, 2/7+5/14, 4/7+6/14 which is 5/14, 9/14 and 14/14.

Or the required ratio is 5:9:14.
I doubt since if the new ratio is 5:9:14 then quantity of petrol, diesel and kerosene in 1 part of resulting mixture be 5/28, 9/28 and 14/28 resp, which is not in sync with the quantities as part of the solution.
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
Post new topic Post Reply
• Page 1 of 1