Looking at the image below, if you turn on the tap continuously, letting water flow into tank A and connect to tanks B, C, D, which tank will be full first? The question seems simple but makes many people have to "rack their brains" to find the answer.
Which tank do you think will fill up first?
Are you in the top 10% of players who can correctly answer which jar will be filled first in a flash? Don't forget to leave your answer in the comment box below!
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