General Aptitude - 8.2 Volume and Surface Area - Data Sufficiency 1 Free Online Tests | Mock Tests | Preparation | Practice Tests

Goto

Take Exam

01 02 03 04 05

1 / 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.

A. I alone sufficient while II alone not sufficient to answer

B. II alone sufficient while I alone not sufficient to answer

C. Both I and II are not sufficient to answer

D. Either I or II alone sufficient to answer

E. None of the above

View Answer

Correct choice: D

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).

1 / 5

Lessons