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Railways PYQCBT 1 2016

RRB NTPC · Question 29

9 women can complete a work in 50 days, if 6 women are increased further, how many days earlier the work be completed? A. 30 B. 20 C. 15 D. 25

  1. C

  2. B

  3. D

  4. A

Show answer & explanation

Answer: (B) B

Explanation

Total work = 9 women × 50 days = 450 woman-days. With 6 more there are 15 women, who need 450 ÷ 15 = 30 days. The work finishes 50 − 30 = 20 days earlier.