Railways PYQCBT 1 2020

RRB NTPC · Question 74

A cylinder has a height of 14 cm and the curved surface area is 528 cm^2. The volume of the cylinder is:

  1. 1244 cm^3

  2. 792 cm^3

  3. 1584 cm^3

  4. 2538 cm^3

Show answer & explanation

Answer: (C) 1584 cm^3

Explanation

Curved surface area 2πrh = 528 with h = 14 gives r = 528/(2 × 22/7 × 14) = 6 cm. Volume = πr²h = 22/7 × 36 × 14 = 1584 cm³.