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
compare square root of 9 and cube root of 27
[#permalink]
22 Apr 2018, 13:59
22 Apr 2018, 13:59
Expert Reply
2
Bookmarks
00:00
Question Stats:
86% (00:20) correct
13% (00:28) wrong based on 43 sessions
Hide Show timer Statistics
Quantity A |
Quantity B |
\(-\sqrt{9}\) |
\(\sqrt[3]{-27}\) |
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.
Drill 1
Question: 10
Page: 354
Question: 10
Page: 354
Re: compare square root of 9 and cube root of 27
[#permalink]
22 Apr 2018, 14:15
22 Apr 2018, 14:15
1
Expert Reply
Explanation
In Quantity A, evaluate the root first, then attach the minus sign: \(-\sqrt{9}=-3\) ; this is equivalent to Quantity B: \(\sqrt[3]{-27}=-3\). Thus, the answer is choice (C).
In Quantity A, evaluate the root first, then attach the minus sign: \(-\sqrt{9}=-3\) ; this is equivalent to Quantity B: \(\sqrt[3]{-27}=-3\). Thus, the answer is choice (C).
Re: compare square root of 9 and cube root of 27
[#permalink]
16 May 2018, 01:57
16 May 2018, 01:57
sandy wrote:
Explanation
In Quantity A, evaluate the root first, then attach the minus sign: \(-\sqrt{9}=-3\) ; this is equivalent to Quantity B: \(\sqrt[3]{-27}=-3\). Thus, the answer is choice (C).
In Quantity A, evaluate the root first, then attach the minus sign: \(-\sqrt{9}=-3\) ; this is equivalent to Quantity B: \(\sqrt[3]{-27}=-3\). Thus, the answer is choice (C).
Dear Sandy,
I got the answer right however I dont understand why have you used - sign? Will be thankful if you can elaborate a bit.
