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  9. Q90

RRB Technician (Grade I Signal + Grade III) 2026 · Question 90 of 265

One pipe can fill the tank in 18 min, while another pipe can empty the completely filled tank in 72 min. If both the pipes are operated together on empty tank, how long (in min) will it take to fill two-third of the tank?

  1. A48
  2. B16Correct
  3. C64
  4. D32

Answer: B. 16

Official answer key verified. Detailed explanation coming soon.

Source: RRB Technician Grade III 09-Mar-2026 Shift 3 (oliveboard compilation with answer key) · reliable-secondary

← Q89View full paper (265 questions)Q91 →

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