A

Admin • 825.56K Points
Coach

Q. A tank is filled by a pipe in 10 hours. Due to a leak, it takes 15 hours to fill. In how many hours can the leak empty the full tank?

  • (A) 20 hours
  • (B) 25 hours
  • (C) 30 hours
  • (D) 35 hours
Explanation by: Admin
Leak rate = 1/10 − 1/15 = 1/30.

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