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Railways PYQCBT 1 2016

RRB NTPC · Question 45

Anil is twice as capable as Binay. If Anil can complete a work 20 days earlier than Binay, how many days will the two work together? A. 11.11 days B. 13.33 days C. 13.83 days D. 14 days

  1. C

  2. D

  3. A

  4. B

Show answer & explanation

Answer: (D) B

Explanation

Binay takes twice as long as Anil, and the difference is 20 days, so Anil takes 20 days and Binay 40. Together: 1/20 + 1/40 = 3/40 a day, so 40/3 ≈ 13.33 days.