A certain machine fills jars of molasses by drawing molasses at a constant rate from a supply tank that holds l liters of molasses when full. If the machine draws m liters of molasses from the supply take in s seconds and no additional molasses is added to the tank, how many minutes will it take the machine to empty a full supply tank?
A. l−60m/s
B. 60ls/m
C. 60lm/s
D. m/(60ls)
E. ls/(60m)
OA E
Source: Veritas Prep
5-Day Free Trial
5-day free, full-access trial TTP
Available with Beat the GMAT members only code
MORE DETAILS
A certain machine fills jars of molasses by drawing molasses at a constant rate from a supply tank that holds l liters
This topic has expert replies
-
BTGmoderatorDC
- Moderator
- Posts: 7187
- Joined: Thu Sep 07, 2017 4:43 pm
- Followed by:23 members
Timer
00:00
Your Answer
A
B
C
D
E
Global Stats
\(s\) Seconds to empty \(m\) litresBTGmoderatorDC wrote: ↑Sat Nov 21, 2020 8:46 pmA certain machine fills jars of molasses by drawing molasses at a constant rate from a supply tank that holds l liters of molasses when full. If the machine draws m liters of molasses from the supply take in s seconds and no additional molasses is added to the tank, how many minutes will it take the machine to empty a full supply tank?
A. l−60m/s
B. 60ls/m
C. 60lm/s
D. m/(60ls)
E. ls/(60m)
OA E
Source: Veritas Prep
\(1\) second to empty \(m/s\) litres
\(1\) minute to empty \(60\,m/s\) litres
\(60\, m/s\) litres get emptied in \(1\) min
\(1\) litre gets empties in \(s/60m\) mins
\(l\) litres get empties in \(sl/60m\) mins
Therefore, E
GMAT/MBA Expert
-
Scott@TargetTestPrep
- GMAT Instructor
- Posts: 7243
- Joined: Sat Apr 25, 2015 10:56 am
- Location: Los Angeles, CA
- Thanked: 43 times
- Followed by:29 members
Solution:BTGmoderatorDC wrote: ↑Sat Nov 21, 2020 8:46 pmA certain machine fills jars of molasses by drawing molasses at a constant rate from a supply tank that holds l liters of molasses when full. If the machine draws m liters of molasses from the supply take in s seconds and no additional molasses is added to the tank, how many minutes will it take the machine to empty a full supply tank?
A. l−60m/s
B. 60ls/m
C. 60lm/s
D. m/(60ls)
E. ls/(60m)
OA E
The rate of the machine drawing molasses from the tank is m/s liters per second or 60 * (m/s) = (60m)/s liters per minute. Since the supply tank can hold l liters of molasses when it’s full, it will take the machine l/(60m/s) = l * (s/60m) = ls/(60m) minutes.
Answer: E
Scott Woodbury-Stewart
Founder and CEO
[email protected]
See why Target Test Prep is rated 5 out of 5 stars on BEAT the GMAT. Read our reviews
