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.
\frac{[fraction]1/1[/fraction]}{[fraction]1/5^{-2}[/fraction
[#permalink]
28 Jun 2019, 07:59
28 Jun 2019, 07:59
1
Bookmarks
00:00
Question Stats:
85% (00:25) correct
15% (00:46) wrong based on 20 sessions
Hide Show timer Statistics
\(\frac{\frac{1}{1}}{\frac{1}{5^{-2}}}\) is equivalent to :
(A) \(\frac{1}{25}\)
(B) \(\frac{1}{5}\)
(C) 1
(D) 5
(E) 25
Can someone help me to solve this problem. I have attached screen short of question for clear readability. Below I have mentioned my solution which is not matching with answer key. Please let me know where am I wrong.
My solution :
According to my solution correct answer is (A) which is not matching with answer key.
Given expression can be written as : (1/1)/(5^2) = (1/5^2) = 1/25 .
(A) \(\frac{1}{25}\)
(B) \(\frac{1}{5}\)
(C) 1
(D) 5
(E) 25
Can someone help me to solve this problem. I have attached screen short of question for clear readability. Below I have mentioned my solution which is not matching with answer key. Please let me know where am I wrong.
My solution :
According to my solution correct answer is (A) which is not matching with answer key.
Given expression can be written as : (1/1)/(5^2) = (1/5^2) = 1/25 .
Re: Exponents and Roots
[#permalink]
29 Jun 2019, 03:05
29 Jun 2019, 03:05
saurabhhjjain wrote:
Q : (1/1)/(1/5^-2) is equivalent to :
(A) 1/25
(B) 1/5
(C) 1
(D) 5
(E) 25
Can someone help me to solve this problem. I have attached screen short of question for clear readability. Below I have mentioned my solution which is not matching with answer key. Please let me know where am I wrong.
My solution :
According to my solution correct answer is (A) which is not matching with answer key.
Given expression can be written as : (1/1)/(5^2) = (1/5^2) = 1/25 .
ans:E
(A) 1/25
(B) 1/5
(C) 1
(D) 5
(E) 25
Can someone help me to solve this problem. I have attached screen short of question for clear readability. Below I have mentioned my solution which is not matching with answer key. Please let me know where am I wrong.
My solution :
According to my solution correct answer is (A) which is not matching with answer key.
Given expression can be written as : (1/1)/(5^2) = (1/5^2) = 1/25 .
Retired Moderator
Joined: 10 Apr 2015
Posts: 6218
Given Kudos: 136
Re: Exponents and Roots
[#permalink]
29 Jun 2019, 05:00
29 Jun 2019, 05:00
2
saurabhhjjain wrote:
Q : (1/1)/(1/5^-2) is equivalent to :
(A) 1/25
(B) 1/5
(C) 1
(D) 5
(E) 25
(A) 1/25
(B) 1/5
(C) 1
(D) 5
(E) 25
\(\frac{\frac{1}{1}}{\frac{1}{5^{-2}}}=\frac{1}{\frac{1}{5^{-2}}}\)
Nice property: \(\frac{1}{\frac{a}{b}}=\frac{b}{a}\)
So, \(\frac{1}{\frac{1}{5^{-2}}}=\frac{5^{-2}}{1}\)
\(=5^{-2}\)
\(=\frac{1}{5^2}\)
\(=\frac{1}{25}\)
Answer: A
Cheers,
Brent
