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?

Question

anonymous · Answer

25P20
5P5 × 20P15
5C5 × 25C14
5P5 × 15P15
5P5 × 25C15

wmj259 · Answer

What does the C and P respresent?

wmj259 · Answer

If the 2nd graders get the whole first row that means that the remain possibilities that remain must be 20 seats to be made into numerous choices.

anonymous · Answer

thats all the information i have

wmj259 · Answer

Are you able to see if you got the answer correct or try again?

anonymous · Answer

no

wmj259 · Answer

is this textbook homework? My guess is B. Let me explain it. 
Since the 5 2nd graders get the first row that means out of 25 seats there are 20 left. So 20 seats are fought for by the remaining 15 first graders.

anonymous · Answer

no this is my online homework and okay i will go with the second one thanks..

wmj259 · Answer

If was able to find out what C and P meant then that would assist me in explaining it better to you.

anonymous · Answer

oh it doesnt say what c and p are