Events & Promotions
|
|
GMAT Club Daily Prep
Thank you for using the timer - this advanced tool can estimate your performance and suggest more practice questions. We have subscribed you to Daily Prep Questions via email.
Customized
for You
Track
Your Progress
Practice
Pays
Not interested in getting valuable practice questions and articles delivered to your email? No problem, unsubscribe here.
Sep 0201:00 PM EDT
-11:59 PM EDT
Take 30% off all study plans with code COURSEWORK - Expires on Monday 9/7
Sep 0410:00 AM EDT
-11:59 PM EDT
We’ve worked incredibly hard to build TTP into the best test prep experience possible, and it would mean a lot to us to win Newsweek’s 2026 Readers’ Choice Award for Best Test Prep. If TTP has helped you, we’d be incredibly grateful for your vote.
Sep 0712:01 AM PDT
-11:59 PM PDT
On the 7th, GMAT Club Tests will be Free! Including all the Quizzes, Questions, and Tests. 12 AM - 11:59 PM PDT- Sep 07
10:00 AM PDT
-11:00 AM PDT
A complete walkthrough of GMAT Club’s free 12-week GMAT study plan: what you study each week, how progress and goals are tracked, how the error log works, and how your practice unlocks paid tools at no cost. - Sep 09
07:00 AM PDT
-10:00 AM PDT
Meet AdComs and explore top Master’s programs - MiM, MiF, MSc, MSBA and more. - Application Fee Waivers - Free 1-Week of GMAT Club Tests: - Master's Application Toolkit - Grand Prize Giveaway - Sep 09
10:00 AM PDT
-11:00 AM PDT
Three MBA applications. Three rejections. No interview invites. A year later, Aman was admitted to Cambridge Judge, SMU, and IMD. In this episode of MBA Admit Stories, Aman shares how he rebuilt his MBA application... 
Sep 1507:00 PM EDT
-09:00 PM EST
Elite scores are possible when you enroll in a powerful GMAT course, taught live online + 6 months access to TTP OnDemand video courses included! Class starts Tues/Thurs Sept. 15, 2026 - Nov. 15, 2027, 7:00pm-9:00pm EST
Sep 2108:00 PM EDT
-10:00 PM EDT
Boost your GMAT score in less than one month in a live online class + 6 months access to TTP OnDemand video courses included! Class starts Mon, Tues, Wed, Thur, Fri Sept. 21, 2026 - Oct. 9, 2027, 7:00pm-10:00pm EST
29 Apr 2021, 00:35
Kudos
Bookmarks
Solution:
First pipe - Fills 1/2 tank in 3 hours =>1 full tank in 6 hours
Second pipe- Fills 2/3 rd tank in 6 hours = > 1 full tank in 6 * (3/2) = 9 hours
LCM(6,9) = 18 => Let the capacity of the tank be 18 units
=> Efficiency of first pipe = 18/6 = 3 units/hour
=>Efficiency of second pipe = 18/9 = 2 units/hour
Working together, they fill 3+2 =5 units/hour
=> They would take 18/5 = 3.6 hours (option b)
Devmitra Sen
GMAT SME
First pipe - Fills 1/2 tank in 3 hours =>1 full tank in 6 hours
Second pipe- Fills 2/3 rd tank in 6 hours = > 1 full tank in 6 * (3/2) = 9 hours
LCM(6,9) = 18 => Let the capacity of the tank be 18 units
=> Efficiency of first pipe = 18/6 = 3 units/hour
=>Efficiency of second pipe = 18/9 = 2 units/hour
Working together, they fill 3+2 =5 units/hour
=> They would take 18/5 = 3.6 hours (option b)
Devmitra Sen
GMAT SME
12 May 2021, 00:53
Kudos
Bookmarks
rite2deepti
Answer: Option B
Video solution by GMATinsight
13 May 2021, 07:17
Kudos
Bookmarks
rate of pipe 1 ; 1/2 capacity in 3 hours so in 6 hours 1 unit
and rate of pipe 2 ; 2/3 in 6 hrs ; if capacity if 3 so per unit 3 hrs and full will be 9 hours
combined rate ; 1/6+1/9 ; 54/15 ; 3.6
option B
and rate of pipe 2 ; 2/3 in 6 hrs ; if capacity if 3 so per unit 3 hrs and full will be 9 hours
combined rate ; 1/6+1/9 ; 54/15 ; 3.6
option B
rite2deepti
