SSC CHSL 2022 PYQ — Question 51

SSC CHSL - 24 May 2022 - Shift 2 • Quantitative Aptitude • Q51

If the volume of a cube is 27 m3 , find its surface area (in m2). 

Show answer & explanation

Correct answer: C

Explanation

The correct answer is option 3 i.e. 54.

Given:

Volume of a cube = 27 m3

Formula used:

Volume of cube = side3         ---- (1)

Total Surface area of cube = 6 × side2         ---- (2)

Calculations:

Using equation (1), we get

⇒ 27 = side3

⇒ side = 3

Using equation (2),

Total surface area of cube = 6 × 9 = 54