ABC26GN4843 · Volume and Surface Area

Subject: General Aptitude · Chapter: Volume and Surface Area · Exam: 2006 · Marks: · Difficulty:

The surface area of a cube is $150 \mathrm{cm}^{2}$. Its volume is
(a)$64 \mathrm{cm}^{3}$
(b)$125 \mathrm{cm}^{3}$
(c)$150 \mathrm{cm}^{3}$
(d)$216 \mathrm{cm}^{3}$
Answer
Answer (as printed): B
Explanation
$$\begin{aligned} 6 a^{2} & =150 \Rightarrow a^{2}=25 \Rightarrow a=5 . \therefore \text { Volume }=a^{3}=5^{3} \mathrm{cm}^{3} \\ & =125 \mathrm{cm}^{3} . \end{aligned}$$

Open in whiteboard · Browse this chapter in the app