if we have two same containers with the same amount of water and we drill one big hole in one container and several small holes in the other container so that the total area of the small holes are equal to the area of the big hole. The water in which container will be drained out completely first? I think it really depends on if the condition is ideal or not. If we don't consider friction or water surface tension, then I would think they require the same amount of time. What do you think? Thanks in advance.