|
|
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.
Updated on: 13 Jun 2013, 02:29
Originally posted by nafishasan60 on 03 Feb 2012, 19:07.
Last edited by Bunuel on 13 Jun 2013, 02:29, edited 2 times in total.
Last edited by Bunuel on 13 Jun 2013, 02:29, edited 2 times in total.
Added the OA
Kudos
Bookmarks
B
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
5%
(low)
Question Stats:
90% (01:30) correct
10%
(02:20)
wrong
based on 372
sessions
History
Date
Time
Result
Not Attempted Yet
A big container is 30% full with water. If 18 liters of water is added, the container becomes 3/4 full. What is the capacity of the big container?
A) 36 liters
B) 40 liters
C) 45 liters
D) 54 liters
E) 60 liters
A) 36 liters
B) 40 liters
C) 45 liters
D) 54 liters
E) 60 liters
03 Feb 2012, 20:19
Kudos
Bookmarks
This is a classic two equations, two unknowns type question. You could set up two equations, and use brute fore to solve. BUT, this is not what a smart test taker should do. Pattern recognition is what's being tested here.
Notice that answers A, B, and E, are divisible by 4, the others are no. So you can eliminate choices C, and D since 3/4 of these choices will not result in a whole number.
Since the answer choices are in chronological order, test the middle choice - choice B
notice that 3/4 of 40 is 30. Easy. If you subtract 18 from 30, you get 12. 12/40 reduces to 3/10 - 30%. Voila choice B satisfies the conditions of the question. Choice B is the correct answer.
Remember the GMAT isn't designed to test your math skills, it's designed to test critical thinking and your ability to recognize patterns and find the easy way of solving a problem. Look for the easy answers.
Cheers,
Wahed
Notice that answers A, B, and E, are divisible by 4, the others are no. So you can eliminate choices C, and D since 3/4 of these choices will not result in a whole number.
Since the answer choices are in chronological order, test the middle choice - choice B
notice that 3/4 of 40 is 30. Easy. If you subtract 18 from 30, you get 12. 12/40 reduces to 3/10 - 30%. Voila choice B satisfies the conditions of the question. Choice B is the correct answer.
Remember the GMAT isn't designed to test your math skills, it's designed to test critical thinking and your ability to recognize patterns and find the easy way of solving a problem. Look for the easy answers.
Cheers,
Wahed
General Discussion
03 Feb 2012, 23:30
Kudos
Bookmarks
30% full with water can be written as 30C/100 or 3C/10 , where C is the capacity of the cylinder
18 liters of water is added, the container becomes 3/4 full
3C/10 + 18 ltr = 3C/4
3C/4 - 3C/10 = 18 ltr
C = 40 ltr
B is correct
try doing this question in ur mind..it will help u speed up the calculation and save time.
18 liters of water is added, the container becomes 3/4 full
3C/10 + 18 ltr = 3C/4
3C/4 - 3C/10 = 18 ltr
C = 40 ltr
B is correct
try doing this question in ur mind..it will help u speed up the calculation and save time.
