ABC26GN4879 · Volume and Surface Area

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

If each edge of a cube is doubled, then its volume:

(a)is doubled

(b)becomes 4 times

(c)becomes 6 times

(d)becomes 8 times

Answer

Answer (as printed): D

Explanation

Let original edge $=a$. Then, volume $=a^{3}$. New edge $=2 a$. So, new volume $=(2 a)^{3}=8 a^{3}$. $$\text { ∴ Volume becomes } 8 \text { times. }$$

Explanation as extracted from the printed page; notation may be imperfect.

Open in whiteboard · Browse this chapter in the app