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.
Nov 17Live Online Classes with Top GRE Expert Rich Zwelling
08:00 PM EST
-10:00 PM EST
Get live instruction from a top-scoring, industry-recognized GRE teachers + 6 months of access to TTP Self-Study included! Tues/Thur Sept 7, 2026---Feb. 2, 2027, 1:00pm-3:00pm EST
Dec 14Live Online Classes with Top GRE Expert Michael Butville
08:00 PM EST
-10:00 PM EST
Get live instruction from a top-scoring, industry-recognized GRE teachers + 6 months of access to TTP Self-Study included! Mon/Wed Dec. 14, 2026---Feb. 22, 2027, 8:00pm-10:00pm EST
1+1/2+1/4+1/16
[#permalink]
06 Apr 2021, 01:53
06 Apr 2021, 01:53
1
Expert Reply
1
Bookmarks
00:00
Question Stats:
99% (00:53) correct
0% (00:00) wrong based on 17 sessions
Hide Show timer Statistics
Quantity A |
Quantity B |
\(1+ \frac{1}{2} + \frac{1}{4 }+ \frac{1}{16} + \frac{1}{32 }+ \frac{1}{64} \) |
2 |
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.
Kudos for the right answer and explanation
Question part of the project GRE Quantitative Reasoning Daily Challenge - (2021) EDITION
GRE - Math Book
1+1/2+1/4+1/16
[#permalink]
06 Apr 2021, 09:54
06 Apr 2021, 09:54
Qt A
\(1+ \frac{1}{2} + \frac{1}{4 }+ \frac{1}{16} + \frac{1}{32 }+ \frac{1}{64} \)
This forms a geometric series.
Sum for geometric series = Sn = \(\frac{a(1-r^n)}{1-r}\)
a = 1 , r = \(\frac{1}{2}\) & n = 5
Sn = 1 - \(\frac{1}{32}\) / \(\frac{1}{2}\)
= \(\frac{31}{16}\) < 2
Qt B > Qt A
Answer B
\(1+ \frac{1}{2} + \frac{1}{4 }+ \frac{1}{16} + \frac{1}{32 }+ \frac{1}{64} \)
This forms a geometric series.
Sum for geometric series = Sn = \(\frac{a(1-r^n)}{1-r}\)
a = 1 , r = \(\frac{1}{2}\) & n = 5
Sn = 1 - \(\frac{1}{32}\) / \(\frac{1}{2}\)
= \(\frac{31}{16}\) < 2
Qt B > Qt A
Answer B
gmatclubot
1+1/2+1/4+1/16 [#permalink]
06 Apr 2021, 09:54
Moderators:
