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Question 46Asked in RRB JE CBT-1, 20 Feb 2026, Shift 2 (12:45 PM)

P and Q together can fill a cistern with water in 24 hours. If P alone can fill the cistern

P and Q together can fill a cistern with water in 24 hours. If P alone can fill the cistern with water in 72 hours, then in how many hours will Q alone fill three-fourth of the same cistern with water?
  1. A54
  2. B28
  3. C27
  4. D55
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Correct answer: (C) 27

From RRB JE CBT-1 PYQ 20 Feb 2026, Shift 2 (12:45 PM)

This is question 46 of RRB JE CBT-1 PYQ 20 Feb 2026, Shift 2 (12:45 PM). See all questions of this paper with answers, or attempt the paper as a timed online test to get your score and all-India rank.