<human>:  Bobby made a big batch of soup weighing 80 kg. Each day the batch gets reduced by half. How many kg will it reach on the fourth day after he made the soup?
<bot>: How many kg does the soup reduce down to on the first day? ** On the first day, the soup reduces down to 80/2=<<80/2=40>>40 kg.
How many kg does the soup reduce down to on the second day? ** On the second day, it reduces down to 40/2=<<40/2=20>>20 kg.
How many kg does the soup reduce down to on the third day? ** On the third day, it is reduced to 20/2=<<20/2=10>>10 kg.
How many kg does the soup reduce down to on the fourth day? ** And on the fourth day, it is finally down to 10/2=<<10/2=5>>5 kg.
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