A tank is fitted with three pipes A, B and C. A and B is an inlet pipe while C is an outlet pipe. How much time does C take alone to empty the full tank ?
Statement 1: A can fill the tank in 4 hours.
Statement 2: B can fill the tank in 6 hours.
Statement 3: If all three pipes are opened together they can fill the tank in 24 hours.
1
Statement 1 and Statement 2 are sufficient.
2
Statement 2 and Statement 3 are sufficient.
3
Statement 1 and Statement 3 are sufficient.
4
All three statements are necessary.