Question

A school bus has 25 seats, with 5 rows of 5 szt. 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 rupy the first rour?

Answer 1

Technically only 1...

If you have to use 4 rows there is only one option;
1 1 1 2
1 1 2 1
1 2 1 1
2 1 1 1

Each number represents the total kids in a row.
1st number is row 1 second number is row 2 etc.


If you can use 2 or 3 rows there are some more answers.