A

Admin • 825.56K Points
Coach

Q. Two inlet pipes can fill a tank in 6 and 8 hours respectively. An outlet pipe can empty it in 12 hours. How long will the tank take to fill if all pipes are opened?

  • (A) 4 hours
  • (B) 5 hours
  • (C) 6 hours
  • (D) 8 hours
Explanation by: Admin
Net rate = 1/6 + 1/8 − 1/12 = 1/6.

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