Aptitude - Volume and Surface Area - Discussion
Discussion Forum : Volume and Surface Area - Data Sufficiency 1 (Q.No. 5)
Directions to Solve
Each of the questions given below consists of a statement and / or a question and two statements numbered I and II given below it. You have to decide whether the data provided in the statement(s) is / are sufficient to answer the given question. Read the both statements and
- Give answer (A) if the data in Statement I alone are sufficient to answer the question, while the data in Statement II alone are not sufficient to answer the question.
- Give answer (B) if the data in Statement II alone are sufficient to answer the question, while the data in Statement I alone are not sufficient to answer the question.
- Give answer (C) if the data either in Statement I or in Statement II alone are sufficient to answer the question.
- Give answer (D) if the data even in both Statements I and II together are not sufficient to answer the question.
- Give answer(E) if the data in both Statements I and II together are necessary to answer the question.
5.
What is the volume of a cube? | |
I. | The area of each face of the cube is 64 square metres. |
II. | The length of one side of the cube is 8 metres. |
Answer: Option
Explanation:
Let each edge be a metres. Then,
I. a2 = 64 a = 8 m
Volume = (8 x 8 x 8) m3 = 512 m3.
Thus, I alone gives the answer.
II. a = 8 m Volume = (8 x 8 x 8) m3 = 512 m3.
Thus, II alone gives the answer.
Correct answer is (C).
Discussion:
5 comments Page 1 of 1.
Pooja said:
4 years ago
I. Cube has 6 sides that is 6a^2 so each side means a^2,a^2=64>>a=8 then the volume of a cube is a^3 according to the substitution v=512.
II. For the second, one we can easily substitute in the formula v=512.
II. For the second, one we can easily substitute in the formula v=512.
SURAJIT HALDER said:
5 years ago
I don't understand this, Anyone explain the answer in detail.
Nandini said:
7 years ago
Please explain it in clear.
Karthik said:
9 years ago
Given answer is wrong. Option E is correct one.
Both the suggestions required to find the volume. You can not calculate volume by either area or length only. It's wrong.
Both the suggestions required to find the volume. You can not calculate volume by either area or length only. It's wrong.
Sandy said:
9 years ago
I am confused, can anyone help me to solve this?
Post your comments here:
Quick links
Quantitative Aptitude
Verbal (English)
Reasoning
Programming
Interview
Placement Papers