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Railways PYQCBT 1 2020

RRB NTPC · Question 75

A rope is divided in to three different parts. The first part is 1/5 of the whole length and second part of the rope is 3/2 of the first part. Third part is what fraction of the rope?

  1. \(\frac{1}{3}\)

  2. \(\frac{3}{4}\)

  3. \(\frac{1}{2}\)

  4. \(\frac{2}{3}\)

Show answer & explanation

Answer: (C) \(\frac{1}{2}\)

Explanation

First part = 1/5; second part = 3/2 × 1/5 = 3/10. Together = 2/10 + 3/10 = 1/2, so the third part is 1/2 of the rope.