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.
Jul 0901:00 PM EDT
-02:00 PM EDT
More Target Test Prep students are earning 100th percentile GMAT scores. Don’t settle for less when the Target Test Prep course gives you everything you need to score high on the GMAT. Start your 5-day free trial today.
Jul 1410:00 AM PDT
-11:59 PM PDT
GMAT Preparation Online - A limited time sale use code: EXPERTSGLOBAL10- Jul 15
08:00 PM PDT
-09:00 PM PDT
Full-length FE mock with insightful analytics, weakness diagnosis, and video explanations! 
Jul 1609:30 AM EDT
-11:30 AM EDT
Is INSEAD your dream b-school and you're looking for solid prep and application strategies to get there? Check out Barkavi’s end-to-end journey to know how she did! Get insights into the INSEAD admissions process, know what Adcoms look at, and more!
Jul 1611:00 AM EDT
-12:00 PM EDT
Prefer video-based learning? The Target Test Prep OnDemand course is a one-of-a-kind video masterclass featuring 400 hours of lecture-style teaching by Scott Woodbury-Stewart, founder of Target Test Prep and one of the most accomplished GMAT instructors.
Jul 1911:00 AM IST
-01:00 PM IST
Do RC/MSR passages scare you? e-GMAT is conducting a masterclass to help you learn – Learn effective reading strategies Tackle difficult RC & MSR with confidence Excel in timed test environment
30 Jan 2019, 03:15
Kudos
Bookmarks
D
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
55%
(hard)
Question Stats:
68% (02:47) correct
32%
(02:52)
wrong
based on 193
sessions
History
Date
Time
Result
Not Attempted Yet
A cistern has a leak which would empty it in 8 hours. A tap is turned on which admits 6 litres a minute into the cistern and it is now emptied in 12 hours. How many litres does the cistern hold?
A. 7580
B. 7960
C. 8290
D. 8640
E. 8840
A. 7580
B. 7960
C. 8290
D. 8640
E. 8840
30 Jan 2019, 04:01
Kudos
Bookmarks
Bunuel
A cistern has a leak which would empty it in 8 hours. A tap is turned on which admits 6 litres a minute into the cistern and it is now emptied in 12 hours. How many litres does the cistern hold?
A. 7580
B. 7960
C. 8290
D. 8640
E. 8840
A. 7580
B. 7960
C. 8290
D. 8640
E. 8840
initial rate =1/8
rate after 6 liters per min is been done = 1/12
so combined rate = 1/8-1/12 = 3-2/24 = 1/24
flow rate in hrs = 6* 60 = 360 ltrs per hr
so vol of cistern = 360 *24 = 8640 ltrs
IMO D
10 Feb 2019, 09:11
Kudos
Bookmarks
let X be the rate of emptying.
total capacity of cistern = 8x
additional inflow at the rate of 360 l/hr = 12*360 = 4320
total volume emptied = 4320 + 8x
total volume emptied is also equal to 12x
so, 4320 + 8x = 12x
8x=8640
--------------------------------------------------------------------------
Give kudos if you like this solution
total capacity of cistern = 8x
additional inflow at the rate of 360 l/hr = 12*360 = 4320
total volume emptied = 4320 + 8x
total volume emptied is also equal to 12x
so, 4320 + 8x = 12x
8x=8640
--------------------------------------------------------------------------
Give kudos if you like this solution
