GRE Prep 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.
In a jar, 2/5 of the marbles are red, 1/4 are green, and 1/
[#permalink]
03 May 2019, 02:13
03 May 2019, 02:13
Expert Reply
2
Bookmarks
00:00
Question Stats:
93% (00:49) correct
6% (01:08) wrong based on 140 sessions
Hide Show timer Statistics
In a jar, \(\frac{2}{5}\) of the marbles are red, \(\frac{1}{4}\) are green, and \(\frac{1}{5}\) are blue.
A)The quantity in Column A is greater.
B)The quantity in Column B is greater.
C)The two quantities are equal.
D)The relationship cannot be determined from the information given.
Quantity A |
Quantity B |
Number of red marbles |
Number of green and blue marbles |
A)The quantity in Column A is greater.
B)The quantity in Column B is greater.
C)The two quantities are equal.
D)The relationship cannot be determined from the information given.
Re: In a jar, 2/5 of the marbles are red, 1/4 are green, and 1/
[#permalink]
03 May 2019, 05:05
03 May 2019, 05:05
3
Red marbles are \(\frac{2}{5}\) of total
Green marbles are \(\frac{1}{4}\) of total and
Blue marbles are \(\frac{1}{5}\) of total.
qty A = \(\frac{2}{5}\) of x where x is the no of marbles.
qty B = (\(\frac{1}{4} + \frac{1}{5}\)) of x where x is the no of marbles.
hence qty B = \(\frac{9}{20}\) of x
\(\frac{2}{5}\)< \(\frac{9}{20}\) hence whenever x is +ve number qty B will always be greater than A and in this case no of marbles must be atleast 1 so B is greater.
Green marbles are \(\frac{1}{4}\) of total and
Blue marbles are \(\frac{1}{5}\) of total.
qty A = \(\frac{2}{5}\) of x where x is the no of marbles.
qty B = (\(\frac{1}{4} + \frac{1}{5}\)) of x where x is the no of marbles.
hence qty B = \(\frac{9}{20}\) of x
\(\frac{2}{5}\)< \(\frac{9}{20}\) hence whenever x is +ve number qty B will always be greater than A and in this case no of marbles must be atleast 1 so B is greater.
Re: In a jar, 2/5 of the marbles are red, 1/4 are green, and 1/
[#permalink]
13 Aug 2022, 18:08
13 Aug 2022, 18:08
1
Besides checking that 1/4 + 1/5 = 9/20 > 8/20, one could pick numbers:
40 Red
25 Green
20 Blue
40 Red < 20 + 25 Green & Blue
Answer B
40 Red
25 Green
20 Blue
40 Red < 20 + 25 Green & Blue
Answer B
