Pipes and citserns || Quantitative Aptitude || CAT 2021 || 21 April (App update required to attempt this test)

A tank is emptied everyday at a fixed time point. Immediately thereafter, either pump A or pump B or both start working until the tank is full. On Monday, A alone completed filling the tank at 8 pm. On Tuesday, B alone completed filling the tank at 6 pm. On Wednesday, A alone worked till 5 pm, and then B worked alone from 5 pm to 7 pm, to fill the tank. At what time was the tank filled on Thursday if both pumps were used simultaneously all along?

Two pipes operate alternatively to fill a tank. Pipe A operates alone for 5 mins and then pipe operates for 3 mins and then again pipe A operates for 5 mins and so on. If they keep operating this way, the tank gets filled in 24 mins. One day while both the pipes started operating, after sometime pipe B stopped working and missed 2 of its turns, and the tank gets filled taking 13 more minutes than the usual time, what is the ratio of the speed of pipe A & Pipe B?

Pipe A can fill the tank alone in 24 hours and pipe B  can empty the tank alone in 36 hours. Pipe A and pipe B are opened alternatively for one hour each. If pipe A is opened first, then in how many hours  filled tank will be completely filled?

Three inlet pipes A, B and C are connected to a water tank. Pipes A and B can together fill the tank in 20 mins and pipes A and C can together fill the tank in 25 mins. If the time taken by pipe B alone to fill the tank is the harmonic mean of time taken by pipes A and C individually to fill the tank, then find the time (in minutes) in which pipe B alone can fill the tank?

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Pipe A can fill a tank in ‘n’ hours and pipe B can fill a tank in (n + 6) hours. If together they can fill the tank in 4 hours, then find the time taken by Pipe A alone to fill a tank whose capacity is twice of the original tank.

Ten different capacity taps attached to a swimming pool, if operate together, can fill the pool in 15 hours. One day when all the taps were opened to fill pool, two taps did not work and the pool got filled up taking three hours more than the usual time. The capacity of the two taps is how many times the capacity of all the taps put together?

A tank is fitted with pipes, some filling it and the rest draining it. All filling pipes fill at the same rate, and all draining pipes drain at the same rate. The empty tank gets completely filled in 6 hours when 6 filling and 5 draining pipes are on, but this time becomes 60 hours when 5 filling and 6 draining pipes are on. In how many hours will the empty tank get completely filled when three draining and two filling pipes are on?

A water tank has inlets of two types A and B . All inlets of type A when open, bring in water at the same rate. All inlets of type B, when open, bring in water at the same rate. The empty tank is completely filled in 30 minutes if 10 inlets of type A and 45 inlets of type B are open, and in 1 hour if 8 inlets of type A and 18 inlets of type B are open. In how many minutes will the empty tank get completely filled if 7 inlets of type A and 27 inlets of type B are open? (TITA)

A cubical tank of Municipality, capacity of which is 200 litres has an inlet and an outlet pipe. It takes 20 minutes to fill the cistern when both pipes are opened together. But, if the outflow rate is increased by 25%, the tank never gets filled. Which of the following can be the outflow rate ?

A cylindrical vessel has a radius of 7 cm. The water flow through a pipe, of 100 sq.cm cross-section, opening into the vessel, so that the water level in the vessel rises by 8m in 3 minutes? The speed at which the water flows is closest to ?