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.
Series F is defined as F n = F (n – 1) + 3 and F 1 = 10.
[#permalink]
05 Jun 2017, 07:40
05 Jun 2017, 07:40
1
2
Expert Reply
14
Bookmarks
00:00
Question Stats:
55% (01:57) correct
44% (01:39) wrong based on 218 sessions
Hide Show timer Statistics
Series F is defined as F n = F(n – 1) + 3 and F 1 = 10.
Quantity A |
Quantity B |
The sum of F 4 through F 10 |
The sum of F 6 through F 11 |
A) Quantity A is greater.
B) Quantity B is greater.
C) The two quantities are equal.
D) The relationship cannot be determined from the information given.
Re: Series F is defined as F n = F (n – 1) + 3 and F 1 = 10.
[#permalink]
11 Oct 2017, 05:53
11 Oct 2017, 05:53
13
1
Bookmarks
The sequence is an arithmetic progression where each term is the precedent plus 3.
Moreover, one can notice that the two columns have many elements in common, since
QA: F4+F5+F6+F7+F8+F9+F10
QB: F6+F7+F8+F9+F10+F11
Thus, we can simplify the comparison to
QA: F4+F5
QB: F11
Now, since each term is three away from the preceding one, we can compute our three terms: F4= F1+3*3 = 19; F5 = F4+3 = 21 and F11 = F5 + 6*3 = 39.
Now QA = 19+21 = 40 and QB = 39.
Quantity A is greater!
Moreover, one can notice that the two columns have many elements in common, since
QA: F4+F5+F6+F7+F8+F9+F10
QB: F6+F7+F8+F9+F10+F11
Thus, we can simplify the comparison to
QA: F4+F5
QB: F11
Now, since each term is three away from the preceding one, we can compute our three terms: F4= F1+3*3 = 19; F5 = F4+3 = 21 and F11 = F5 + 6*3 = 39.
Now QA = 19+21 = 40 and QB = 39.
Quantity A is greater!
General Discussion
Senior Manager
Joined: 23 Jan 2021
Posts: 294
Given Kudos: 81
Concentration: , International Business
Re: Series F is defined as F n = F (n – 1) + 3 and F 1 = 10.
[#permalink]
27 May 2021, 08:17
27 May 2021, 08:17
IlCreatore wrote:
The sequence is an arithmetic progression where each term is the precedent plus 3.
Moreover, one can notice that the two columns have many elements in common, since
QA: F4+F5+F6+F7+F8+F9+F10
QB: F6+F7+F8+F9+F10+F11
Thus, we can simplify the comparison to
QA: F4+F5
QB: F11
Now, since each term is three away from the preceding one, we can compute our three terms: F4= F1+3*3 = 19; F5 = F4+3 = 21 and F11 = F5 + 6*3 = 39.
Now QA = 19+21 = 40 and QB = 39.
Quantity A is greater!
Moreover, one can notice that the two columns have many elements in common, since
QA: F4+F5+F6+F7+F8+F9+F10
QB: F6+F7+F8+F9+F10+F11
Thus, we can simplify the comparison to
QA: F4+F5
QB: F11
Now, since each term is three away from the preceding one, we can compute our three terms: F4= F1+3*3 = 19; F5 = F4+3 = 21 and F11 = F5 + 6*3 = 39.
Now QA = 19+21 = 40 and QB = 39.
Quantity A is greater!
Best approach!
