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OpenStudy (anonymous):
A school bus has 25 seats, with 5 rows of 5 seats. 15 students from the first grade and 5 students from the second grade travel in the bus. How many ways can the students be seated if all of the second-grade students occupy the first row?
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OpenStudy (anonymous):
a.25P20, b.5P5x20P15, c.5C5x25C14, d.5P5x15P15, e.5P5x25C15
OpenStudy (anonymous):
What are the P's and C's within the multiple choices?
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