Railways PYQCBT 1 2020

RRB NTPC · Question 76

30 Workers can build a bridge in 40 days. If 75 Workers are to be assigned to be complete the same work, then the number of days required will be:

  1. 16

  2. 56

  3. 12

  4. 10

Show answer & explanation

Answer: (A) 16

Explanation

The work = 30 × 40 = 1200 worker-days. 75 workers need 1200/75 = 16 days.