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The volume of cube x is 125 and the surface area of cube y i
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28 Oct 2020, 14:26
28 Oct 2020, 14:26
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Question Stats:
73% (00:34) correct
26% (02:26) wrong based on 15 sessions
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The volume of cube x is 125 and the surface area of cube y is 54
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.
Quantity A |
Quantity B |
The length of an edge of cube x |
\(\frac{5}{3}\) of the length of an edge of cube y |
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.
Re: The volume of cube x is 125 and the surface area of cube y i
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28 Oct 2020, 14:46
28 Oct 2020, 14:46
Expert Reply
Please Sir follow the rules for posting the questions: they must go under the relative section and not in quant general
https://gre.myprepclub.com/forum/how-to-po ... 12752.html
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https://gre.myprepclub.com/forum/how-to-po ... 12752.html
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Re: The volume of cube x is 125 and the surface area of cube y i
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28 Oct 2020, 15:52
28 Oct 2020, 15:52
2
tusharstat43 wrote:
The volume of cube x is 125 and the surface area of cube y is 54
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.
Quantity A |
Quantity B |
The length of an edge of cube x |
\(\frac{5}{3}\) of the length of an edge of cube y |
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.
CUBE X
Volume of cube = (length of one edge)³
So we can write: (length of one edge)³ = 125
Solve: length of one edge = 5
CUBE Y
A cube has 6 square faces,
54/6 = 9
So each square face has area 9
Area of square = (side length)²
So we can write: (side length)² = 9
Solve: Length of one side (edge) = 3
We have:
QUANTITY A: 5
QUANTITY B: 5/3 of 3 = 5
Answer: C
