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Railways PYQCBT 2 2017

RRB NTPC · Question 13

The volume (in cu. cm) of a right circular cylinder with radius 7 cm and height 2 cm is: (Take π = 22/7)

  1. 308

  2. 308/21

  3. 308/7

  4. 310

Show answer & explanation

Answer: (A) 308

Explanation

Volume of a cylinder = πr²h = 22/7 × 7 × 7 × 2 = 22 × 7 × 2 = 308 cubic cm.