Question

please answer this question no 6.

Answer 1

The answer here will be 120.
As there will always one school left so
one school can be left in 5 different ways.

Let's assume school number 1 is left so the remaining 4 school can be choosen in 24 number of ways.
_ 4x3x2x1

similarly if 2nd school is left then
4_3x2x1

so the answer will be
5x( 4x3x2x1) = 120