Peter can do a piece of work in 8 days Sam in 10 days and John in 16 days Sam and John work together for 4 days and then John is replaced by Peter find when the work will be finished.
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The brain is an amazing three-pound organ that controls all functions of the body, interprets information from the outside world, and embodies the essence of the mind and soul. Intelligence, creativity, emotion, and memory are a few of the many things governed by the brain.
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