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.
Sep 28Live Online Class with Top GRE Expert Mike Butville
08:00 PM EDT
-10:00 PM EDT
Top scores are possible when you enroll in a powerful GRE course, taught live online + 6 months access to TTP GRE OnDemand video courses included! Class starts Mon/Wed Sept. 28, 2026 - Dec. 9, 2026, 8:00pm-10:00pm EST
n is a positive integer
[#permalink]
18 Nov 2019, 09:05
18 Nov 2019, 09:05
Expert Reply
00:00
Question Stats:
75% (00:47) correct
24% (00:45) wrong based on 128 sessions
Hide Show timer Statistics
\(n\) is a positive integer
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 solution.
Quantity A |
Quantity B |
The remainder when \(3^{4n}\) is divided by 10 |
\(1\) |
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 solution.
Re: n is a positive integer
[#permalink]
19 Nov 2019, 09:40
19 Nov 2019, 09:40
1
If n=1 then Quantity B is greater (1/3<3/4)
If n=2, quantity A is greater (1/9>1/16)
Answer: D
If n=2, quantity A is greater (1/9>1/16)
Answer: D
Re: n is a positive integer
[#permalink]
21 Nov 2019, 08:52
21 Nov 2019, 08:52
3
3^4 = 81
Since last digit in 81 is 1, when 81 is multiplied by 81 any number of times we will end up with digit 1 at oneth place.
When any number is divided by 10 it leaves a remainder that is equal to the digit at oneth place.
Thus C is the answer.
Since last digit in 81 is 1, when 81 is multiplied by 81 any number of times we will end up with digit 1 at oneth place.
When any number is divided by 10 it leaves a remainder that is equal to the digit at oneth place.
Thus C is the answer.
