1. Consider a file containing grade test grades for students called grades.txt file:

Last,First,A/I,Test1,Test2,Test3

Smith,John,A,90,100,99

Ballard,Sue,I,15,,50

Clark,Sally,A,100,50,

Koen,Jack,I,90,100,99

Ball,Lucy,A,100,100,100

Bently,Mark,A,100,,100

The file is comma delimited. The first line is a header. The records contain Last Name, First Name, Active/Inactive file and several test scores. Ignore the heading line. For each Active student calculate their average grade for each student printing out the Students First Name followed by Last Name and average score. Display a heading at the beginning with a name for the report and headings for the columns of Name and Average.

After all students have been processed display the number of active students and the average class test score.

Format the output so that only 1 decimal point is shown and the averages scores line up on the decimal points.

In this file, for example, the gawk program should print the following:

Student Average Test Scores

Name Average

John Smith 96.3

Sally Clark 50.0

Lucy Ball 100.0

Mark Bently 66.7

4 Students with average score of 78.25

THIS IS IN GAWK AND WRITTEN IN C LANGUAGE