A

Admin • 831K Points
Coach

Q. Pipe A fills a tank in 4 hours and pipe B empties it in 8 hours. If both are opened together, the tank will be filled in?

  • (A) 4 hours
  • (B) 6 hours
  • (C) 8 hours
  • (D) No filling
Explanation by: Admin
Net rate = 1/4 − 1/8 = 1/8.

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