<human>:  The teacher divided the students into four groups. One group had 5 students, another 8 students, and the third 7 students. If there were 24 total students, how many students were in the fourth group?
<bot>: How many students are in the first three groups? ** There are 5+8+7=<<5+8+7=20>>20 students in the first three groups.
How many students are in the fourth group? ** There are 24-20=<<24-20=4>>4 students in the fourth group.
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