Question : Pipes A and B running together can fill a cistern in 6 minutes. If B takes 5 minutes more than A to fill the cistern, then what will be the respective time in which A and B will fill the cistern separately?

Option 1: 15 min and 10 min

Option 2: 15 min and 20 min

Option 3: 25 min and 20 min

Option 4: 10 min and 15 min

Question : Two pipes A and B can fill a cistern in $12\frac{1}{2}$ hours and 25 hours, respectively. The pipes were opened simultaneously, and it was found that, due to leakage in the bottom, it took one hour 40 minutes more to fill the cistern. If the cistern is full, in how much time (in hours) will the leak alone empty 70% of the cistern?

Option 1: 40

Option 2: 35

Option 3: 30

Option 4: 50

Question : Pipes A and B can fill a tank in 12 minutes and 15 minutes, respectively. The tank when full can be emptied by pipe C in $x$ minutes. When all three pipes are opened simultaneously, the tank is full in 10 minutes. The value of $x$ is:

Option 1: 18

Option 2: 15

Option 3: 20

Option 4: 24

Question : Two pipes A and B can fill a tank in 12 minutes and 24 minutes, respectively, while a third pipe C can empty the full tank in 32 minutes. All three pipes are opened simultaneously. However, pipe C is closed 2 minutes before the tank is filled. In how much time (in minutes) will the tank be full?

Option 1: 9

Option 2: 10

Option 3: 12

Option 4: 8

Question : Each inlet pipe can fill an empty cistern in 84 hours while each drain pipe can empty the same cistern from a filled condition in 105 hours. When the cistern is empty, 9 inlet pipes and 10 outlet pipes are simultaneously opened. After how many hours will the cistern be filled?

Option 1: 84

Option 2: 88

Option 3: 80

Option 4: 90

Question : Anuj and Anup have to travel from place A to place B in their respective cars. Anuj is driving at 70 km/hr and takes 3 halts of 10 minutes each, while Anup is driving at 80 km/hr and takes 4 halts of 15 minutes each. The time taken by Anup to reach place B, if Anuj takes 8.5 hours, is:

Option 1: 8 hours

Option 2: 7 hours

Option 3: 4 hours

Option 4: 6 hours