SSC GD 2023 PYQ — Question 44

The correct answer is option 2 i.e 770cm².

We know, that the curved surface area of cylinder is = 2πrh

and Volume of Cylinder is = πr²h

Thus we can write the volume as:-

⇒ πrh × r

⇒ 2πrh × r/2

⇒ C.S.A × r/2

We have diameter = 14cm

Thus, radius = 7cm

thus Volume  = C.S.A × 7/2

⇒ (220)(7/2)

⇒ 770

Thus, the volume of the cylinder is 770 cm².