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Question 8Asked in RRB JE CBT-1, 19 Feb 2026, Shift 2 (12:45 PM)

Two water supply lines A and B can fill a reservoir individually in 10 hours and 12 hours,

Two water supply lines A and B can fill a reservoir individually in 10 hours and 12 hours, respectively. A discharge outlet D can empty the reservoir completely in 6 hours. If all three are opened together at 7:00 A.M., at what time will one-fourth of the reservoir be filled?
  1. A11 A.M.
  2. B10 P.M.
  3. C10 A.M.
  4. D11 P.M.
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Correct answer: (B) 10 P.M.

From RRB JE CBT-1 PYQ 19 Feb 2026, Shift 2 (12:45 PM)

This is question 8 of RRB JE CBT-1 PYQ 19 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.