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RRB Junior Engineer / DMS / CMA 2019 · Question 3395 of 3719

P can do a piece of work in 10 days. After working for 4 days, P leaves and Q finishes the remaining work in 9 days. If they had worked together from the beginning, then how many days would they take to complete the work?

  1. A6 daysCorrect
  2. B9 days
  3. C8 days
  4. D7 days

Answer: A. 6 days

Official answer key verified. Detailed explanation coming soon.

Source: RRB JE 2019 CBT-1 (27-May-2019 Shift 3) — official response-sheet export via freshersnow (answer key) · reliable-secondary

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