Use OCaml programming language. $1.$ Print the average of the following numbers

$10,50,25$

$15\mathrm{.}1,40,5\mathrm{.}1.$

$2.$ Compute the area of a rectangle using let binding. Use let to define variables: height, width of any values you like, then use the variables to compute the area of the rectangle.

$3.$ Write a function rectangle$\_$area that takes the arguments h$,$ and w and return h times w$.$

$4.$ Write a function max that takes two arguments a$,$ b and returns the larger of the two. If a is larger, then a is return. Otherwise, b is returned.

$5.$ Write a function that takes three argument a$,$ b$,$ and c$.$ It returns the largest of the three.