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<!DOCTYPE html> <html> <head> <meta charset=utf-8 /> <title>Compute the average marks and grade</title> <script> var students = [['David', 80], ['Vinoth', 77], ['Divya', 88], ['Ishitha', 95], ['Thomas', 68]]; var Avgmarks = 0; for (var i=0; i < students.length; i++) { Avgmarks += students[i][1]; var avg = (Avgmarks/students.length); } console.log("Average grade: " + (Avgmarks)/students.length); if (avg < 60){ document.write("Grade : F"); } else if (avg < 70) { document.write("Grade : D"); } else if (avg < 80) { document.write("Grade : C"); } else if (avg < 90) { document.write("Grade : B"); } else if (avg < 100) { document.write("Grade : A"); } </script> </head> <body> </body> </html>