Question : Pipes A, B and C can fill a tank in 20, 30 and 60 hours, respectively. Pipes A, B and C are opened at 7 a.m., 8 a.m., and 9 a.m., respectively, on the same day. When will the tank be full?

Question : Direction: In a school, the bell rung once after each half an hour. The school starts at 8:00 a.m. and closes at 1:30 p.m. The bell rung 3 times continuously, at the time of beginning, at the time of lunch break at 10:00 and 10:30 a.m., and at the end.

Question : A tank can be filled by pipe A in 2 hours and by pipe B in 6 hours. At 10 A.M., pipe A was opened. At what time will the tank be filled if pipe B is opened at 11 A.M.?

Question : What is the duration of the lunch interval in a cricket test match?

Question : Directions: Ram leaves his house at 20 minutes to seven in the morning, and reaches Kunal's house in 25 minutes. They finish their breakfast in another 15 minutes and leave for their office which takes another 35 minutes. At what time do they leave