What is the volume of a cube whose surface area is 150 m 2 (metre square)?

Correct Answer is : 125 cubic metres

RRB Group D 1-Dec-2013 Shift 1 Solved Paper

Question : 47 of 100

Marks: +1, -0

What is the volume of a cube whose surface area is 150 m² (metre square)?

Solution:

Let the side of the cube be a cm

6 a^{2}=150

⇒ a^{2}=25

⇒ a=5 {cm}

Then volume

a^{3}=125 {cm}^{3}

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