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Railways PYQCBT 1 2020

RRB NTPC · Question 55

The length of the longest pole, that could be placed in a room of dimensions 10 m, 8 m and 6 m, is

  1. 10 √2 m

  2. 18 m

  3. 14 m

  4. 15 m

Show answer & explanation

Answer: (A) 10 √2 m

Explanation

The longest pole is the room's diagonal: √(10² + 8² + 6²) = √200 = 10√2 m.