A faculty is generating few reports of student.

Marks is given in the array of 10 students.

Marks is out of 25.

Create two functions:

1. findAverage()  => it will return te average of all the marks sudens scored
2. moreThanAverage() => it will return the marks greater than average in form of array.

Array of marks = [12,18,25,24,25,18,20,20,21,5]