The surface area of a cube is 150 cm2. Its volume is :

Answer: Option B

$$\begin{array}{rl}& 6a^2=150\\ & \Rightarrow a^2=25\\ & \Rightarrow a=5\end{array}$$
∴ Volume :
$$a^3=5^3=125\text{ c}{\text{m}}^3$$