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.
Cube C has an edge of 4 and cube D has an edge of 5.
[#permalink]
25 Nov 2020, 09:26
25 Nov 2020, 09:26
Expert Reply
00:00
Question Stats:
82% (00:56) correct
17% (00:49) wrong based on 29 sessions
Hide Show timer Statistics
Cube C has an edge of 4 and cube D has an edge of 5.
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 explanation
Quantity A |
Quantity B |
The ratio of cube C’s total surface area to its volume |
The ratio of cube D’s total surface area to its volume |
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 explanation
Re: Cube C has an edge of 4 and cube D has an edge of 5.
[#permalink]
25 Nov 2020, 21:20
25 Nov 2020, 21:20
1
if a be an edge of a cube
then the surface area= 6a^2
and the volume=a^3
therefore, the ratio of surface area and volumn= 6a^2/a^3= 6/a
now, the ratio for the cube having edge 4= 6/4
and the ratio for the cube having edge 5=6/5
since, 6/4>6/5 (A is the answer)
then the surface area= 6a^2
and the volume=a^3
therefore, the ratio of surface area and volumn= 6a^2/a^3= 6/a
now, the ratio for the cube having edge 4= 6/4
and the ratio for the cube having edge 5=6/5
since, 6/4>6/5 (A is the answer)
gmatclubot
Re: Cube C has an edge of 4 and cube D has an edge of 5. [#permalink]
25 Nov 2020, 21:20
Moderators:
