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Railways PYQCBT 1 2016

RRB NTPC · Question 95

Vikram and Vivek can finish a work in 50 days. They worked together for 20 days and then left. How much work has been done by them? A. 3/5 B. 1/3 C. 1/2 D. 2/5

  1. D

  2. A

  3. B

  4. C

Show answer & explanation

Answer: (A) D

Explanation

Together they finish the work in 50 days, so they do 1/50 of it each day. In 20 days they complete 20 × 1/50 = 20/50 = 2/5 of the work.