Events & Promotions
|
|
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.
May 1212:00 PM EDT
-11:59 PM EDT
Make the most of your break with the most realistic GMAT™ prep. Take up to $700 off select products.
May 1308:30 AM PDT
-09:30 AM PDT
In Episode 4 of our GMAT Ninja CR series, we tackle the most intimidating CR question type: Boldface & "Legalese" questions. If you've ever stared at an answer choice that reads, "The first is a consideration introduced to counter a position that...- May 12
07:30 AM PDT
-08:30 AM PDT
Join the Live and learn more about Picking the Right Schools - May 14
08:30 AM PDT
-09:30 AM PDT
Most GMAT test-takers are intimidated by the hardest GMAT Verbal questions. In this session, Target Test Prep GMAT instructor Erika Tyler-John, a 100th percentile GMAT scorer, will show you how top scorers break down challenging Verbal questions.. - Jun 10
06:00 AM PDT
-06:15 PM PDT
Register for the GMAT Club Virtual MBA Spotlight Fair – the world’s premier event for serious MBA candidates. This is your chance to hear directly from Admissions Directors at nearly every Top 30 MBA program..
![The Ultimate Q51 Guide [Expert Level]](/forum/styles/gmatclub_light/imageset/icon_post_target_unread.svg "The Ultimate Q51 Guide [Expert Level]"){kind=icon}
28 Dec 2018, 00:13
Kudos
Bookmarks
[Math Revolution GMAT math practice question]
(0.0004)(0.000005)/200,000 is equal to which of the following?
A. 10^{-5}
B. 10^{-4}
C. 10^{-3}
D. 10^{-2}
E. 10^{-1}
=>
(0.0004)(0.000005)/200,000
= {4*5*(0.0001)(0.000001)}/{2*100,000}
= (2*10^1*10^{-4}*10^{-6})/ (2*10^5)
= (10^{-9})/(10^{-5}) = 10^{-4}
Therefore, the answer is B.
Answer: B
(0.0004)(0.000005)/200,000 is equal to which of the following?
A. 10^{-5}
B. 10^{-4}
C. 10^{-3}
D. 10^{-2}
E. 10^{-1}
=>
(0.0004)(0.000005)/200,000
= {4*5*(0.0001)(0.000001)}/{2*100,000}
= (2*10^1*10^{-4}*10^{-6})/ (2*10^5)
= (10^{-9})/(10^{-5}) = 10^{-4}
Therefore, the answer is B.
Answer: B
30 Dec 2018, 18:33
Kudos
Bookmarks
[Math Revolution GMAT math practice question] 12.20/q51 12.31
120 tickets are to be evenly distributed to n people. If n is greater than 1 and the number of tickets given to each person is greater than 1, what is the greatest possible value of n?
A. 9
B. 10
C. 12
D. 14
E. 15
=>
120 = 2^3*3^1*5^1 or 120 = 8*15.
Thus 15 is the greatest factor among choices.
Therefore, the answer is E.
Answer: E
120 tickets are to be evenly distributed to n people. If n is greater than 1 and the number of tickets given to each person is greater than 1, what is the greatest possible value of n?
A. 9
B. 10
C. 12
D. 14
E. 15
=>
120 = 2^3*3^1*5^1 or 120 = 8*15.
Thus 15 is the greatest factor among choices.
Therefore, the answer is E.
Answer: E
31 Dec 2018, 19:47
Kudos
Bookmarks
[Math Revolution GMAT math practice question]
f(x) is the greatest prime factor of x. If n is a positive integer less than 10, what is the value of n?
1) f(n) = f(1000)
2) f(n) = 5
=>
Forget conventional ways of solving math questions. For DS problems, the VA (Variable Approach) method is the quickest and easiest way to find the answer without actually solving the problem. Remember that equal numbers of variables and independent equations ensure a solution.
Since we have 1 variable (n) and 0 equations, D is most likely to be the answer. So, we should consider each condition on its own first.
Condition 1)
Since 1000 = 2^3*5^3, f(1000) = 5.
So, f(n) = 5 and n = 5.
Thus, condition 1) is sufficient, since it gives a unique solution.
Condition 2)
Condition 2) is the same as condition 1).
Thus, condition 2) is also sufficient.
FYI, Tip 1) of the VA method states that D is most likely to be the answer if conditions 1) and 2) provide the same information.
Therefore, D is the answer.
Answer: D
If the original condition includes “1 variable”, or “2 variables and 1 equation”, or “3 variables and 2 equations” etc., one more equation is required to answer the question. If each of conditions 1) and 2) provide an additional equation, there is a 59% chance that D is the answer, a 38% chance that A or B is the answer, and a 3% chance that the answer is C or E. Thus, answer D (conditions 1) and 2), when applied separately, are sufficient to answer the question) is most likely, but there may be cases where the answer is A,B,C or E.
f(x) is the greatest prime factor of x. If n is a positive integer less than 10, what is the value of n?
1) f(n) = f(1000)
2) f(n) = 5
=>
Forget conventional ways of solving math questions. For DS problems, the VA (Variable Approach) method is the quickest and easiest way to find the answer without actually solving the problem. Remember that equal numbers of variables and independent equations ensure a solution.
Since we have 1 variable (n) and 0 equations, D is most likely to be the answer. So, we should consider each condition on its own first.
Condition 1)
Since 1000 = 2^3*5^3, f(1000) = 5.
So, f(n) = 5 and n = 5.
Thus, condition 1) is sufficient, since it gives a unique solution.
Condition 2)
Condition 2) is the same as condition 1).
Thus, condition 2) is also sufficient.
FYI, Tip 1) of the VA method states that D is most likely to be the answer if conditions 1) and 2) provide the same information.
Therefore, D is the answer.
Answer: D
If the original condition includes “1 variable”, or “2 variables and 1 equation”, or “3 variables and 2 equations” etc., one more equation is required to answer the question. If each of conditions 1) and 2) provide an additional equation, there is a 59% chance that D is the answer, a 38% chance that A or B is the answer, and a 3% chance that the answer is C or E. Thus, answer D (conditions 1) and 2), when applied separately, are sufficient to answer the question) is most likely, but there may be cases where the answer is A,B,C or E.
