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RRB Junior Engineer / DMS / CMA 2019 · Question 1370 of 3719

Three pipes P, Q and R can fill a tank in 10, 15 and 20 hours separately. P was opened at 7 AM, Q at 8 AM and R at 9 AM. At what time was the tank completely filled if R can work for only 3 hours at a stretch and needs a 1 hour break?

  1. A12:00 PM
  2. B12:30 PMCorrect
  3. C12:12 PM
  4. D1:00 PM

Answer: B. 12:30 PM

Official answer key verified. Detailed explanation coming soon.

Source: RRB JE 2019 CBT-1 (26-June-2019 Shift 3) — cracku.in solved paper with answer key · reliable-secondary

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